welcome, you've found the right place to get your questions answered. Many on here that do the fifthwheel, I have a
fifthwheel but no truck so I can't speak for that part but I certainly like how it feels roomy when I'm in it, and being
that it has an "upstairs" it makes me feel like I have somewhere else to go other than to just turn around and be in
another room.
What I do recommend though is to get something your comfortable with, look and do the research
and when you have your mind made up, do an actual sit in routine, climb in the tub, open the cabinets, sit on the toilet
etc. I've known folks that bought and then found out they couldn't stand up in the shower cause they were too tall.
Many others will chime in and you'll get lots of opinions here.