There was a vendor on here who posted about a huge tank bought from glasscages failing. They stopped making that size after the customer bought it, and could not even replace it. I think they had to get a smaller one as a replacement. I want to say it was csx something, but I can't recall.
On the other hand, I bought my 240 from them and it was exactly what I expected. My sales person was polite, but not flexible on the price at all. The aquarium is overall a 7/10. There was stray silicon that I had to scrape off, and you can see it in a few places, but it doesn't bother me. If it weren't for glasscages I probably would have not been able to afford an aquarium this large, so that's all that matters to me.