I have the 5g tank and love the tank
I did not use the filter that came with it though, way too strong for the tank size. I replaced it with the azoo 60 filter http://www.amazon.com/gp/product/B00...?ie=UTF8&psc=1
and since it is pretty heavily planted bought this light for it http://www.amazon.com/gp/product/B00...?ie=UTF8&psc=1
The light that comes with it is not adequate for growing plants imo.
The tank itself is is very nice, I personally love the rounded corners and the crystal clear views. The only negative about the tank itself is the lid set-up. The "hinges" broke the same day I set it up, but that was ok since I have to remove the lid for wc's anyway. I put the hinge brackets on and just rest the lid on top and it works just fine. It doesn't come with a heater so I added an adjustable heater. Here is a pic (I just set this tank up about 10 days ago).