Yeah Al works at German Auto Sports, people have had some bad experiences with him but if you look hard enough you will find complaints about every shop. Still, they know old bmws really well and have a cheaper than average shop rate. To be honest they get the best reviews from the E30 crowd.
I've done all of my work myself so far, but I know eventually I'll probably have to go to a shop and I'd take it to GAS. Though, I'm considering getting the subframe bushings done at the dealer because they have specialty tools and it may actually work out to be cheaper.