For routine stuff only
They do a fine job on the basic stuff, but I go to my good mechanic if anything needs to be fixed.
What I don't like is the fact you can watch everyone standing around and talking while your car is on the lift and you are waiting. Taking a book or leaving your car are recommended.
Also, they ALWAYS try to upsell you on stuff. Sometimes stuff you don't need. For example, one time they told me I needed a brake job when I didn't.