If you are worried about costimer service problems then skip Verizon. Verizons phones can also be very expensive. They also have bad coverage in queens atleast and they don't have great coverage in Bronx
Cingular is now AT&T too and T-mobile and Thier own network.
They have very good coustimer support
I live in New York City and I'm thinking of leaving T-Mobile because of recurrent dropped calls. I know that Verizon is rated highest in the area. Does anyone have experience with Cingular (though I believe they run on the T-Mobile network)? I'd like to stay with GSM but I'm worried about Cingular's customer service problems.