I have one and I love it. We have some guys that don't move around too well and the full size door is a big plus for them and for kids. The only downside is my own fault, I drive regular sized car and it doesn't fit in it with all my other gear, so I typically have to have someone come pick it up.
Holds heat well and has a lot of room. I dont have a lot of experience with other shelters, but im very happy with my purchase.