I've seen them and they look okay though personally didn't like the curved corners. Friend picked up a chipped 180g (for a
paludarium) same style and it seems solid. Never confirmed but heard the plumbing isn't imperial so could be a problem if changing things up later.
If cost is a big factor, look around here on Canreef lots a deals on used equipment. Also on Kijiji, a bit back and there was a
250 and
280g FS if you where thinking bigger.