HI rockman,
we have 4 of these (2x oztent versions and 2x oztrail versions)
(the kids got the oztrails.)
We absolutely love them, they are perfect for us, when we can't take the van and we go overnight or the longest we have done is 2 weeks in them (across the desert)
They are so quick to put up, and really comfy, we have put a self inflatable matress in the bottom of ours, which gives a really good night sleep.
The oztrails are of the same design, however they are a less quality, the zippers have started to play on them. However the oztent versions you can tell as such a superior quality.
JD
P.S i don't find it stuffy at all (and i am not a small guy!).. I can even change in their, and i find if it's a hot night, i just leave the front flap open. (or you can even peg it out as it comes with the poles and ropes.