You have gotten a lot of good advice. I started with a 29 foot trailer with a shallow slide. I liked the floor plan until I stayed in it for over a few days. The angle for watching the TV was uncomfortable and there was not enough floor space. We felt too closed in. We sold it and have a 39 foot class A with three slides. We have been living in it for 3 months while the house is being built and we are very comfortable. This is not to say you need a 39 foot fifth wheel. The point is that it is hard to know how the space will feel long term until you live in it.