Never ordered from him but he's a decent name in the VW world. He has a booth at many of the big shows.
I like German Auto Parts. Prices are decent, shipping is fast and cheap, great customer service, and they have a good supply of OEM stuff. ECS Tuning and 1stVWParts are the other ones I usually buy from. I go between the sites price and brand comparing. GAP is usually where my money goes.