In retail they say if you like the service tell your friends, and if you don't tell the store. Well, I am telling my friends. I just got one of my Retina's back from a CLA performed by Zack's camera in Providence R.I. They did a superb job on it. It was in pretty good cosmetic shape before, but now it looks brand new. The shutter sounds wonderful, the focus is amazingly smooth, the rangefinder is perfect. The camera functions as if it were new. I am very pleased, and I highly recommend them.