In our 60's we purchased an M260 for our first travel trailer. We wanted a king bed and something our Yukon XL could tow (6900 lbs gross). We looked at many models and manufacturers and focused on the Mallard due to the Azdel siding and the quality of visible construction. The M260 has a rear bath with a wide counter and much storage. The shower is 30x30 or maybe 36x36 and was plenty big enough for a guy wearing XXL. The long storage cabinets behind the shower held all the towels and clothes we could ask for.
The front bedroom has a king bed with cabinets and reading lights above the top of the bed. There are also side tables on each side with USB plugs and an electric plug for phone charging, sound machine, or CPAP. Above those were hanging clothes storage on both sides of the bed that were very deep for other items also. There is also storage under the bed.
The kitchen has ample counter space, storage cabinets, and plugs/lights. Along with the stove, 3 burners, microwave; the refrigerator was a useful size for a week long trip. Fridge runs off propane or electric. Then the large panty as you come in the door can hold a bunch of food and supplies to cook.
The dinette in the slide out has a table which will fold down and become a bed. It also has big storage cabinets under each bench.
Also in the slide is a comfortable love seat which faces the entertainment area which consists of cabinets which would hold many dvds. The M260 came with a radio with DVD player with both inside and outside speakers. It came without a TV but had a reinforced area in this area to mount one and we went many miles with no issues.
The A/C and furnace each handle the space well, especially with the thicker Azdel siding. The electric and propane water heating provided us with all the hot water we ever asked for.
Outside there is an awning with LED lighting. There is a large storage area under the front bedroom that is fully enclosed. I was always amazed at how many items I could pack in there. There is 1 black and 2 grey tanks as well as a fresh water tank. Set up was easy with the power stabilizers with the controls inside the outside storage compartment. The power jack made it easy to level from front to back.
My 20 year old Yukon pulled it for 10 trips and did great but with 285,000 miles I bought a bigger truck. With the bigger truck we then got a great deal on a used 5th wheel or we would still be using our Mallard M 260 today. My wife sat and cried as we unloaded all our stuff.