Buying the Dress from DBS

Hello All
I think I may have found dress. Its by Rena Koh, who is not a very big name. I saw it and tried it on in a shop in Huntington. I sent the info out to discounters using www.bridalgown.com and got at quote for $400.00 less than the bridal shop in Huntington PLUS there would be no tax so thats another $100.00. I am nervous about ordering something like this over the phone/internet. But $500.00 can go towards a lot of other stuff. Any experiences or thoughts out there?
Thanks

My friends sister bought her dress from DBS. She was married last Dec. Everything went fine and she was so happy with the bargain she got. She put the money she saved towards her honeymoon.