My installer seemed to do a good job. He spent a bit of extra effort to get the broken glass out, seal the door well and make sure it operated smoothly.

Glass Master was reasonably priced, quick, and friendly. I recommended them to a co-worker in need of a repair.

Promptness
Professionalism
Trustworthiness
Quality

I did not get the chance to see the installer, but I trust him is good from all the aspects.