I've not ordered from them before, but I did get one of their catalogs and even spoke to Doc himself once or twice when I had questions about availability. Seemed like a nice guy and has been around awhile, which usually indicates honesty and a certain level of customer service.
I've never ordered from him because his prices are a little higher than some of the larger vendors like NPD/Mustangs Unltd/CJ Pony. But, if he were local, I'd have no problem whatsoever trying him out.
Glenn Morgan: 66 GT V-Burgundy Fastback 351w+toploader+9 in. TracLoc. Started out as a rusted-out Chicago-area crusher. After sacrificing a solid 66 coupe for its sheetmetal sub-assemblies, I have one solid (and expensive) work in progress%