make sure you watch him while he repairs your phone. We have heard that sometimes, tech will take your original parts and replace it with copy parts.
we left it for him to fix and unlock. Took it home and it still didnt work. We called and told the tech the issue, the phone is locked and we cant do anything with it at all. were advised to bring back to Apple to have them restore all, but before we bring back to Apple, we have to bring the phone back b/c there was a part that he forgot to put back. ( light went on in my head- out of all those phones and parts he has lying aroud on his desk, how does he knows which one he left out of who's phone- hmmm)
And months later I heard from a guy selling Iphones said that actually many of these places do that. I have only one experience with this shop. I do like the prices, so just be aware and watch him fix your phone.