the only real problem I have heard over and over with glass cages is customer service but still it's not 100% of the time. Living so close I would not try to find another tank manufacturer. Ask the people who have there tanks if they like the tank. And the tank only. I bet you will find many happy people.
People who know a guy who had a glasscages tank 10 years ago don't count. and customer service can take a back burner if people are happy in the end.
Also you would be close enough that if you had problems you can drive there and hash it out with the managment in person. It's alot easier to get stuff done FAST when you talk face to face with the guy your paying $$$$ to make a big tank.
And there are not many custom tank places around b/c the call for them is not that great. most people will be happy for there lives in the tank sizes that are readily available in any good LFS.