I have used San Art several times, because they do good work, they are coveniently located, and reasonable. But everytime I was treated rudely, for ex door was open - so one would assume store is open - and I was told rather tartly to read sign and asked to wait outside for 15"" (no problem waiting, but a little courtesy would not hurt). The atmoshpere does make you feel as if the store is doing you a favor.
Cons: how they treat customers!!