Here is my thread on PVC cages:

http://ball-pythons.net/forums/showt...With-Pictures!

Those cages don't look like they are made very well from the pictures I saw on their site. really thin plastic and poor overall design. Chemical welds can really be a pain if they aren't done right. unfortunately you can't tell without sticking your head in a cage to actually get a good look at them.

My other issue with them is that the door is acrylic. Acrylic scratches up pretty easily and can warp over time.

Without seeing one first hand I can't say anything for sure. I didn't like what I saw from the pictures but seeing one in person could leave an entirely different impression.