I have one, and I've found it to be a very good little tank. The lighting is really quite good for the size. I've got mushrooms, zooanthids, xenia, and a small torch coral going in it right now. Flow is a little light, so I've added a small powerhead. Because of the additional flow, I'm also getting a little more salt creep than I'd like over the edge. The filtration system is working fine. I loaded one of the chambers with LR rubble in place of bio balls. The best part is the one piece curved glass front and sides....very pleasant view. I'd give it a 7 or maybe a low 8 for a tank of that size.