I had the 5 gallon and liked it, for a while, but had to return it after the silicone started to peel around the edges.
Pros: it's really unique and the angles really allow for great viewing
The angles allow for more swimming room for fish
Cons: I had difficulties cleaning the filter behind the wall section and it seemed to accommodate detritus
Silicone peeling (although a friend's had one without any issues)
The light definitely was good enough to grow plants, and seemed to hit a nice balance between growing plants and growing algae. I had Amazon swords, Java ferns, and Java moss grow well without much algae at all.
I'd recommend this tank, though. It's visually so interesting.
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