I was considering them and a number of other folks. I did not pull the trigger as I decided to go smaller and glass. I have heard lots of good things about them. If you do some searching on the forum you will see the various posts.
I will say that I think they price their tanks cheaper by using thinner acrylic which you need to be careful about. When I was looking at a similar size tank I was told to stay away from 1/2in acrylic and the other manufacturers I was looking at all were using thicker acrylic. There are multiple calculators on the internet and this forum that will tell you what thickness you need.