First, let me state that I never actually received a ride from this company. I've tried on two separate occasions, but their dispatch team has never allowed me to get that far and has MAJOR customer service issues. The only reason I've ever called this company is because their phone number is so easy to remember.
On my most recent call to the company (which just happened to be last night), I had to call from a pay phone because my cell phone battery died. Someone answered about 6 rings later and mumbled "hello," no mention of the company or even the employee's name.
I asked for a ride home from the Phoenix Public Library over on Central and McDowell, and the dispatcher asked for the address. I told him I don't know the address and he told me to "ask someone for it." I explained that I can't just walk around asking for the address because I'm on a payphone and there is no one within 30 feet of me. So he responded, "Oh, well, I need an address to get a cab to you." I ended up looking through a stack of torn up phone books searching for the address while he held a conversation with one of his co-workers. None of them listed the library address and the dispatcher hung up on me after a minute.
I called another cab company immediately afterwards and had absolutely no problem with them. The dispatcher didn't ask for the library's address (in fact, she stated it just after I told her where I was) and didn't hold a conversation with co-workers about weekend exploits. Never calling Yellow Cab again.