Took a quick trip up to MacDowell Mountain Park outside Phoenix for a test run- plenty of room for 2 people and gear and more. Didn't test it with more than 2 people, but there's space for 4 if you don't mind being cozy. The thing is solid- I expected it to be wobbly,flimsy, etc from looking at it, but I never felt the tent itself move around. It's on the 4runner right now, and the car rocked a bit with 2 more people sleeping in the back, but overall very comfy compared to sleeping on the hard, rocky desert ground. Setup wasn't 30 seconds, but 3 minutes isn't too bad. Like others have said, the ladder is not so easy to use, but for me it'll stay since it gets the job done as is. It should be said after a few beers, climbing up and down the ladder is not necessarily recommended.
Best things about the RTT? I got quite a few comments on it along the lines of "I've never seen anything like that before." Girls like sleeping "upstairs"
. The sleeping pad doesn't need inflation. It's just cool.