RV Type
Make and model
Floorplan
Year
Grand Design MOMENTUM M-CLASS 398M reviews
Liveability
4.0
Overall quality
3.0
Floorplan
5.0
Driving/towing
4.5
Factory warranty
3.0
Reviews
Stars Refinement
4 ratings and reviews
Voted most helpful review
Kristy Cox
California
Reviewed on April 15, 2021
RV reviewed
2017 Grand Design Momentum M-Class 398M

5.0
This 5th wheel has been amazing for our family. With the size it made it comfortable to get out of the weather as needed on our trips. Enjoy coffee on the couch with the fireplace going. All with the ability of 4 tv's for everyone to have options.. kids, friends!...read more
This 5th wheel has been amazing for our family. With the size it made it comfortable to get out of the weather as needed on our trips. Enjoy coffee on the couch with the fireplace going. All with the ability of 4 tv's for everyone to have options.. kids, friends! I
Livability
5.0
Overall quality
5.0
Floorplan
5.0
Driving/towing
5.0
Factory warranty/support
5.0
Voted most helpful review
Sue Mennenga
Arizona
Reviewed on April 6, 2019
RV reviewed
2017 Grand Design Momentum M-Class 398M

5.0
very satisfied with my purchase little dealer little prices was very informative and beat all the competition price wise would recommend buying from them again to all my friends! i am very excited to start traveling with my new travel...read more
very satisfied with my purchase little dealer little prices was very informative and beat all the competition price wise would recommend buying from them again to all my friends! i am very excited to start traveling with my new travel trailer!!
Livability
5.0
Overall quality
5.0
Floorplan
5.0
Driving/towing
5.0
Factory warranty/support
5.0
Voted most helpful review
Robert Vinson
Nevada
Reviewed on December 7, 2017
RV reviewed
2017 Grand Design Momentum M-Class 398M

2.8
We purchased our 398-M in March of 2017..It is now December 2017 and in has been in for repairs after every trip that we have used it. At this time we have used it 6 times. It has spent over 6 months total in the repair shop. We have had problems with the refrigerator, heating system, air...read more
We purchased our 398-M in March of 2017..It is now December 2017 and in has been in for repairs after every trip that we have used it. At this time we have used it 6 times. It has spent over 6 months total in the repair shop. We have had problems with the refrigerator, heating system, air conditioning system, charging system, trim falling off inside, lights falling off outside, shower leaking, rear beds fell off the walls, blinds fell off, tires blowing, power switching from generator to battery power, and any more items.
We would not recommend this product to anyone.
We spent almost a $100,000 and the dealer knowing the problems with ours will only give us $50,000 for it. They know that it is a lemon and do not want it back in their hands. They said that they could not resale it due to all of the repairs made and it’s repair history.
Livability
3.0
Overall quality
1.0
Floorplan
5.0
Driving/towing
4.0
Factory warranty/support
1.0
Voted most helpful review
Robert Vinson
Nevada
Reviewed on December 7, 2017
RV reviewed
2017 Grand Design Momentum M-Class 398M

2.8
We purchased our 398-M in March of 2017..It is now December 2017 and in has been in for repairs after every trip that we have used it. At this time we have used it 6 times. It has spent over 6 months total in the repair shop. We have had problems with the refrigerator, heating system, air...read more
We purchased our 398-M in March of 2017..It is now December 2017 and in has been in for repairs after every trip that we have used it. At this time we have used it 6 times. It has spent over 6 months total in the repair shop. We have had problems with the refrigerator, heating system, air conditioning system, charging system, trim falling off inside, lights falling off outside, shower leaking, rear beds fell off the walls, blinds fell off, tires blowing, power switching from generator to battery power, and any more items.
We would not recommend this product to anyone.
We spent almost a $100,000 and the dealer knowing the problems with ours will only give us $50,000 for it. They know that it is a lemon and do not want it back in their hands. They said that they could not resale it due to all of the repairs made and it’s repair history.
Livability
3.0
Overall quality
1.0
Floorplan
5.0
Driving/towing
4.0
Factory warranty/support
1.0
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