I own a '14 FL Montana 3850FL, that I use as an apartment away from home where I have a business. VERY happy with it - the only issue I've had really is that the horizontal hinged door over the cargo storage under the bed leaked water in rainstorms (although never when washing - odd...)
Yes, it gets a little hotter up front, but not a problem with two aircon units and a ceiling fan. I also run a retro desk fan just to circulate the cooled air better - but I do that in my DP also.
My biggest like is that with the bedroom in back, I don't wake up with the newspaper delivery truck brings the park paper at four in the a.m., and being a light sleeper, just sleeping at the back means I get a better sleep all around. And with five slides, it's got plenty of room - and two entry doors allow you to access the bathroom without bringing the slides out when traveling.
All that being said, I'm now looking at getting their new 3711FL - still a front living room, but with six slides, and the living room open more with the kitchen/dining for that bigger, open, feeling. Montana make a great trailer with great value for the money. A neighbor just took delivery of a new Redwood unit that costs a lot more, and I noticed his vertically hinged cabinet doors were not aligned very well, and didn't always close in the latch like they're supposed to. As another poster noted, paying more doesn't mean better quality every time...