I personally go to Yelp and look for the best quality place and the one with fewest screw up or complains, instead of finding the lowest price. They are usually just slightly more instead of double or triple. One I went to help "lend" me a screen so I can backup my data before sending into Apple Store for warranty repair. I paid for the labor and the guy was understanding, even lend me a cable while I was backing up the phone in his store.
Some idiot fanboy blamed me for being cheap and not getting a bigger icloud plan instead of apple not letting people backup a phone without a screen to unlock (say unlock via iTunes with iCloud account), they'll learn that one day it will hit them hard.