This was my second run with House & Garden's Cocos line. I've had pretty good success with it so far, but feel as though House & Garden have to complex of a product line that can quickly break your budget.
I've had three full runs through this tent already and so far it's been great. I originally purchased it because it's all I thought I could fit into the space I have. Though I probably could have gone a bit bigger. Nonetheless it's been just enough space to run 2 plants in 1 gallon pots.
The biggest issue I've had with this tent so far is that it's difficult to keep temperature / humidity stable in such a small tent. Opening it for just a minute will drop the humidity significantly. Because of this it can also be difficult to vent heat. I'm currently using a 4" exhaust fan but I'd benefit from upgrading to a 6".