First off people, this is a ghetto cab service in/around downtown phoenix it's your own fault if you don't know that. If you call them from Chandler, Scottsdale, or elsewhere far because you are too cheap to pay for Discount/Yellow/Clean Air (the cabs that have 300 cars on the road, not 7) then don't complain. This is Sunrise, not a limo service. There's a reason why they will get you somewhere for 1/2 of what discount charges.
When I lived in the Biltmore area I used these guys almost exclusively. The dispatcher recognized my number and had almost memorized my routine and knew where I was going at what time on any given day almost.
Yes the cars are dirty, I don't really care since I'm in a cab for maybe 15 minutes at most. Yes the drivers might look a little iffy, get them talking and you can have some of the most interesting conversations and hear some very funny stories.