I'm loving mine! Saved me about $15 on my water bill. Cant wait to see the electric bill. I say in six months it will pay for itself. Not quite as impressive as a 300g but after owning a 300, it's a small piece of paradise!
I wish they'd have thrown in an optional fuge lines/pre-drilled with plugged fitting at least, but I'll have to DIY it. (a tank's not "yours" until you've diy'ed something). Other thank that, I havent found anything else to complain about yet (set up a month with LR and softies from 300 - fish added tonight)