I just got a replacement top from GAHH..it looks great! Tight, no air leakage at high speeds..don't ask how fast, I'm embarassed to admit that I did that. The rear window is 2" smaller than stock, but visibility is ok, as you couldn't see out of the oem window, anyway.
I'm sure a lot depends on who installs the top, GAHH has licensed installers that may be more familiar than most with installation of a soft top.
There is a used top for sale on ebay, btw.