What to look for in an alignment shop?

Similar to others, I asked around. Asked a local car builder who does resto's and custom frames and suspension. Went to their recommendation, and these guys are old and young but are racers too. They understand all kinds of suspension and were great. I even took my new car to them because I didn't trust the dealer. They said all was set correctly. I didn't paying them the $100 because I trust them. Ask around, when you find a good guy- stay with him.