We purchased granite from Go Granite recently the CS was horrible, would not return emails, calls and etc. The installation of the granite was bad, the seam line (is at the sink which they suggested and we agreed to unbestknown to us that is the worst possible spot to put your seam) is very noticeable, it is wide and not cut straight, along 1 wall there is a " between the wall and granite because it was not cut straight. When I talked to the owner was told that was the way it was, sent pics she told me she would get back to me and still have not heard from her. We have had 3 granite installers come out to try and correct the issues and they told us this must have been done by folks who didn't know what they were doing.
I would strongly recommend not using them horrible workmanship and customer service from the owner.
So please check around before using them and just as a FYI they will give you a discount if you write good things about them in the review sections of some sites.