RV Type
Make and model
Floorplan
Year
Grand Design Momentum M-Class 350M reviews
Liveability
4.4
Overall quality
3.5
Floorplan
3.9
Driving/towing
4.3
Factory warranty
3.0
Reviews
Stars Refinement
11 ratings and reviews
Voted most helpful review
Cindy Hansen
Reviewed on January 30, 2023
RV reviewed 2015 Grand Design Momentum M-Class 350M
5.0
This RV is a dream. Excellent quality - pre-Winnebago buyout of Grand Design. No unexpected repairs were required. Upgrades on the AC and the Refrigerator to keep it better than new. 2015 Grand Design Momentum M-Class...read more
This RV is a dream. Excellent quality - pre-Winnebago buyout of Grand Design. No unexpected repairs were required. Upgrades on the AC and the Refrigerator to keep it better than new. 2015 Grand Design Momentum M-Class 350M.
Livability
5.0
Overall quality
5.0
Floorplan
5.0
Driving/towing
5.0
Factory warranty/support
5.0
Voted most helpful review
Susan Iovino
Oregon
Reviewed on September 12, 2021
RV reviewed 2018 Grand Design Momentum M-Class 350M
4.8
This is a very well built RV/Toy Hauler. We lived in ours for 8 months in the winter in an RV Park and were very comfortable. The fireplace allowed us to use the parks electricity to keep the place warm without using so much propane. Having the garage/2nd bedroom was a blessing as it gave an...read more
This is a very well built RV/Toy Hauler. We lived in ours for 8 months in the winter in an RV Park and were very comfortable. The fireplace allowed us to use the parks electricity to keep the place warm without using so much propane. Having the garage/2nd bedroom was a blessing as it gave an additional room for privacy as well as a large dining area. We were able to take long showers with the larger capacity water heater. The built in vacuum cleaner system made it convenient to keep the floors clean and not use up space for a separate vacuum. There is lots of storage space in the kitchen, bedroom and bathrooms.
Livability
5.0
Overall quality
5.0
Floorplan
5.0
Driving/towing
5.0
Factory warranty/support
4.0
Voted most helpful review
George Wilson
New York
Reviewed on June 24, 2021
RV reviewed 2018 Grand Design Momentum M-Class 350M
4.8
Well built unit, tows ok but I need a bigger truck. HaHa. Nice design except for the lack of underneath storage. We like the 350M Momentum for is size and livability. Lots of room for the two of us. Not so much when the grandkids come, but we can handle...read more
Well built unit, tows ok but I need a bigger truck. HaHa. Nice design except for the lack of underneath storage. We like the 350M Momentum for is size and livability. Lots of room for the two of us. Not so much when the grandkids come, but we can handle it.
Livability
5.0
Overall quality
5.0
Floorplan
4.0
Driving/towing
5.0
Factory warranty/support
5.0
Voted most helpful review
Joe
Ohio
Reviewed on November 1, 2020
RV reviewed 2016 Grand Design Momentum M-Class 350M
4.0
Our Grand Design Momentum 350 was a delight to own! We enjoyed the whole make-up of the toy hauler, and we were sad to see it leave. We certainly made great memories that will last a lifetime in our...read more
Our Grand Design Momentum 350 was a delight to own! We enjoyed the whole make-up of the toy hauler, and we were sad to see it leave. We certainly made great memories that will last a lifetime in our RV.
Livability
4.0
Overall quality
4.0
Floorplan
4.0
Driving/towing
5.0
Factory warranty/support
3.0
Voted most helpful review
Brigitte Roberts
New York
Reviewed on January 2, 2020
RV reviewed 2018 Grand Design Momentum M-Class 350M
3.4
Alpin Haus have been terrible in customer service. I had leak repaired 3 or 4 times and they charged me for it. Livingroom slide out leaks occasionally. Lights on the front work for a short period of time and quit. The refrigerator quit on me in the middle of a 13,000 mile road trip, I could...read more
Alpin Haus have been terrible in customer service. I had leak repaired 3 or 4 times and they charged me for it. Livingroom slide out leaks occasionally. Lights on the front work for a short period of time and quit. The refrigerator quit on me in the middle of a 13,000 mile road trip, I could not get alpin Haus to call me for repairs or any call at all. I still have issues with the camper.I
had problems with hotwater heater not working. That's about all I can think of right now. I think this is more than anyone should have with a rig this expensive :(
Livability
5.0
Overall quality
3.0
Floorplan
3.0
Driving/towing
5.0
Factory warranty/support
1.0
Voted most helpful review
John
Louisiana
Reviewed on October 20, 2018
RV reviewed 2015 Grand Design Momentum M-Class 350M
1.6
Put deposit to buy this rv at [Dealer]. and after 3 day [Dealer] says roof has to be replaced. So going to sell wholesale since about 12,000 for roof, 3500 for plexiglass repair, and awning and awning arm needs replacing. ...read more
Put deposit to buy this rv at [Dealer]. and after 3 day [Dealer] says roof has to be replaced. So going to sell wholesale since about 12,000 for roof, 3500 for plexiglass repair, and awning and awning arm needs replacing. Lemon
Livability
1.0
Overall quality
1.0
Floorplan
2.0
Driving/towing
3.0
Factory warranty/support
1.0
Voted most helpful review
Mike
Colorado
Reviewed on August 19, 2018
RV reviewed 2016 Grand Design Momentum 350M
1.8
I regret purchasing the Grand Design Momentum 350M. Grand Design does NOT stand behind their product. This RV will make news for safety issues not being addressed, it’s a fire hazard waiting. I’m looking for anyone that has a similar issue of a DRY ROTTED FUEL LINE... The leaking fuel line runs...read more
I regret purchasing the Grand Design Momentum 350M. Grand Design does NOT stand behind their product. This RV will make news for safety issues not being addressed, it’s a fire hazard waiting. I’m looking for anyone that has a similar issue of a DRY ROTTED FUEL LINE... The leaking fuel line runs the entire length of the toy hauler against the frame rail and the belly is completely enclosed with foam sealant and winter weather protection. I’ve contacted the place of purchase Windish RV in Longmont CO and they passed me onto Grand Design directly. I talked to Joe Charles the warranty manager at Grand Design and without investigating into my claim, he says “this will probably be a maintenance item”.. I asked him to explain how does he come up this possibly being a maintenance item? This is clearly a fire hazard having a leaking gas line on the toy hauler. There’s not a place in our country that would allow you to occupy a dwelling with a leaking gas line. The estimate from the shop to make the necessary repairs for the dry rotted fuel line is over $2k and that’s not including any gas soaked items not seen. I have consulted with an attorney, and if Grand Design refuses to stand behind their unsafe RV, I will make a spectacle of them in court.
Livability
3.0
Overall quality
1.0
Floorplan
3.0
Driving/towing
1.0
Factory warranty/support
1.0
Voted most helpful review
Cash
Kentucky
Reviewed on June 27, 2018
RV reviewed 2016 Grand Design Momentum 350M
1.8
Worse camper ever owned. Quality terrible. Grand design would not stand behind warranty. Tires terrible. Had blow out just about caused major wreck. Had problems with axle. Grand design kept saying leeper axles the problem. Had problems with generator. Never have identified what problem is. One...read more
Worse camper ever owned. Quality terrible. Grand design would not stand behind warranty. Tires terrible. Had blow out just about caused major wreck. Had problems with axle. Grand design kept saying leeper axles the problem. Had problems with generator. Never have identified what problem is. One thing that is dependable. The payment every month.
Livability
1.0
Overall quality
1.0
Floorplan
5.0
Driving/towing
1.0
Factory warranty/support
1.0
Voted most helpful review
Larry
Tennessee
Reviewed on January 9, 2018
RV reviewed 2016 Grand Design Momentum M-Class 350M
4.2
We love it. We've owned others and we're convinced Grand Design Toy Haulers are the best combination of fun and luxury. The garage offers so many options beyond just otir cycle storage. We love the converted patio. So do the pets.
The kitchen has great storage with very nice finishes. Compares...read more
We love it. We've owned others and we're convinced Grand Design Toy Haulers are the best combination of fun and luxury. The garage offers so many options beyond just otir cycle storage. We love the converted patio. So do the pets.
The kitchen has great storage with very nice finishes. Compares to your home. Pantry is wonderful and the side by side fridge is awesome. Not your typical RV fridge.
Pulls very nice. I have an F250 with an air ride system.
Pull into any camp site and be the envy of the camp.
Livability
5.0
Overall quality
4.0
Floorplan
5.0
Driving/towing
4.0
Factory warranty/support
3.0
Voted most helpful review
Dianne Kelding
Iowa
Reviewed on December 2, 2017
RV reviewed 2016 Grand Design Momentum M-Class 350M
2.6
THIS camper no better than rest of them out there. Ihave problems today with the kitchen ceiling the paper on ceiling is letting loose. Trouble with the awning blowing out going down the road landing on roof. The side ladder going too roof unsafe. The steps are unsafe should be 4 steps instead of...read more
THIS camper no better than rest of them out there. Ihave problems today with the kitchen ceiling the paper on ceiling is letting loose. Trouble with the awning blowing out going down the road landing on roof. The side ladder going too roof unsafe. The steps are unsafe should be 4 steps instead of 3.
Livability
5.0
Overall quality
1.0
Floorplan
3.0
Driving/towing
2.0
Factory warranty/support
2.0
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