I had a very bad experience with another locksmith which left me with no lock on my front door. The original locksmith quoted me between $300 and $400 to replace the lock. This seemed like a lot so I called around and Carlos quoted me $130 for the same service.
He was a little later than expected (he misplaced my number) but came right away when I called to see where he was. He charged me exactly what he quoted and was done in minutes.