Absolutely horrible service experience three times running, I will never go back.
1. I had the alternator replaced on my old 240SX, and they put the battery terminal bolts in backwards so that they wouldn't tighten down the whole way. I didn't find this out until it rattled off in the middle of the highway during rush hour.
2. I bought a new battery, and they did the install. It took them two hours, and when I got there, they checked me out, and I went out to find that the car didn't start. They had re-installed the old battery out of another car into mine.
3. Got the oil changed, and they left the drain plug out. I got a new motor out of that one.
These were at three different shops, so I can't say it was just because one shop was bad.