My wife and I have had many kinds of units from several towables, to Class C, and Class A gas. In 2001 we bought a 40' DP and just loved it, but foolishly sold it and went to a large 5th wheel. Well that lasted for two years and we really missed the convenience of motorized. So we went to a 32' gas thinking that would do it. While we kept it quite a few years, it was never "comfortable" to us. We have since gone back to a 40' DP and I cannot see going back.
That was just us...I know many downsize and it works perfectly for them. I guess that's why there are so many kinds of units out there to choose from!