Compare some Tents

I am in the market for a Grow tent. There is a bunch out on the market and I really do not want a piece of crap. Thought a thread about good and bad tent designs, companies & accessories would be a good way to narrow the field. I personally will be going for something about 4x4 or so. But size does not matter while comparing different models. I am looking for more information about strength, light holding capability &reflective capabilities, water proofing, accessory's & vent holes..ete etc So If you have a grow tent toss up some pro's and cons if you could. Thanks a lot.

Here's my diy tent. 2x4x6.

I like it. It is clean, simple and pretty well organized. Thanks for posting. Each one i see will give me ideas on which way to take my project.