I've ordered from them multiple times. The first time was a little rough - they actually didn't process the order for 7 days. I was the squeaky wheel and got several discount codes from them for future purchases. They do carry the same lines, quality as my LQS, cuts are 37" to the yard. No complaints from me!
Amazon bought fabric.com in June 2008 - so if you find it on one, look on the other site for perhaps different pricing. They also have some different fabrics on the 2 sites.