The 25' has good use of space. One thing I would note is that whatever coach you get, chop about 3' off the number and that will be your useable interior space. So 22' would be 19' of interior space, 25' (which is 25' 11' I think) would be 22' and some change... and so on up and down the food chain.
When we went to upgrade from the 19' Bambi, we looked at the 22'. Nice coach, but still for us a bit too cramped. The 25' (though ours is a Safari not a Classic), does have a nice amount of space for 2 or 3 people. Four or 5 if three are youngins. Two things I didn't care for about the 22' was the electric tank heaters and one battery..this might have changed, I'm not sure. Other three things I didn't care for were the front bedroom, the wheel well taking 1/4 to near 1/2 the floor space under the dinette and the wet bath. Now I know some folks have 22's and love 'em, I'm just sharing what our take was.....