It doesn't look like a bad tent at all. Although, because it is a little cheaper, beware. Crummy Zippers, thin skin, weak seams, these are all common tent problems. I got my Jardin for one hell of a deal. $135! It was "used" on ebay. the owner had never even set it up, all still in original packaging. As far as fan cfm, I can't tell you. But with an ambient temp of 65F, one 6" duct booster fan is all that is necessary for mine to stay in the low 70's. ($35 @ Lowe's) And that's with a 600HPS, maybe it's the cool tube though. As far as smell goes, I have not yet messed with any carbon scrubbing. I just use Ona gel. Open the little jar near the tent, and all you can smell is Ona. This stuff is great.