That is one thing I recommend to anyone looking at campers is to see it closed up. Dealers always have them opened up. We have looked at hundreds of campers over the years, both of ours with slides we asked to see them closed and got that "WHAT

" look. We have seen ones that seemed massive, but you had to put out one slide to use the bathroom, another you had to put out both slides to get to the fridge. Another thing to have is a u-shaped dinette, makes a double bed instead of sleeping curled up in a ball.
Exactly that. Our criteria was simple:
1) stop for groceries and put them away.
2) stop and make a quick lunch.
3) use your personal restroom. That was one of the great features of taking the trailer.
If a rig could not do that without messing with slides, it was out, done, Kaput. We can sleep in our 5th wheel and have done so with the slide in when it was really nasty outside.
I personally don't like dinettes at all. Our current rig I purchased with the intent to remodel. I took a sledge to the dinette first.
Then I gutted out the bathroom walls, took out the silly 48" tub/shower, and put in a proper shower.
I had already changed the bed platform to make it a true king bed.
When the walls come tumbling down when the walls come tumblin tumblin.........Down!
It was old enough that it had an entertainment center with a cathode ray tube TV, about 14" deep of wasted space.
That made for a toilet space there so narrow I defy anyone to take care of business. It was very reminiscent of an old 737 lav LOL!
That was 9 years ago and we have kept it to the 4 western states so far. It was a good run for a trailer I spent 10K on.
I put up a new wall of 3/4" oak veneer to match all the oak inside. There is an automotive DVD receiver in that space now.
I had envisioned an arm mounted LCD TV there, but it never happened. We really did not want a TV in there.
This custom box encloses the wires where they came out of the roof into the original wall. it has cubbies for towels low, and a pair of shelves you can reach from inside the shower for shampoo, body wash, and wash cloths.
By next fall I hope to start the replacement RV build. It is a ground-up custom thing unlike anything you could buy.