There are acres of mediocre chains in Phoenix but no really fine dining (couple of exceptions in Scottsdale, but at high prices -- think USD 200 per person). Otherwise every possible chain is represented, and some are OK (Papadeaux, Outback, etc.). There is a pizza place in downtown which is one of the best in the US (Bianco). In Glendale there is a pretty good Mexican small chain, which makes Mexico City style food, called La Perilla Suiza (on Peoria and 35th). So there is reasonably good food to be found, but not easily.