Back in the days of celluloid (you know, film, the stuff we used to put in cameras), I came to Tempe Camera all the time. Their processing was fairly priced and I could rest assured my negatives would not be scratched. Though I now shoot digital and don't have a need for these services, I imagine not much has changed.
Equipment sales are another strong point from my perspective. The salespeople are always among the friendliest I've ever dealt with and helpful to boot. Sure, the prices are a little higher than some of the mail-order shops (I spent $80 on a filter I could have ordered for $60), but the smiles and helpfulness make the price difference negligible.
I've never brought a camera in for repair, but have been told that they know what they're doing. If the other components of their business are any indication, I believe it.