I looked at the 9.0 one when I saw it at a RV show. I thought it was a cool concept and liked how the roof raises. The 9.0 was really small, I do like your 12.0 one way better it at least gives you more walking room.
Our friends are just about to get one of those, they tried a pop-up but it was too much set-up/tear down for them. They look so neat, I can't wait to check out my friends when they get theirs. Do you have a porta potty in yours?