I've gone here for tires, service, and repairs for three of my past vehicles.
The prices are fair. I canvased prices from other shops and Pep Boys were the least expensive. The service is good. The mechanics I've dealt with were honest. They don't try to up-sell you just to make sales. On a couple of occasions, I've even had mechanics inform me that I didn't need to get my rear brake shoes changed, just the pads in the front.
The rewards program is great, especially if you're getting major service done. I once earned enough points to get an $80 Pep Boys gift card after getting the 120,000 mile maintenance service done.