I thought it was a great book, but finding ANYONE who can even wrench on an old BMW can be a chore. So as far as "good", beggars can't be that choosy you know.I've always been curious if he is considered to be a good mechanic.
If you are extremely selective about your customers, naturally you will be thought of highly.
I think most repair shops take anyone they can, within reason, and naturally the feedback can be mixed.