Most people say it's a bad network with bad (and too busy) customer service.
And anything that's just infuriatingly bad is almost never worth a low price in my eyes.
If you value a fairly decent network and fairly low prices, but don't mind waiting 20 minutes to an hour to talk to a CSR, go with Sprint.
If you value OK prices, a decent network (better than Sprint, IMHO), and very quick customer service, go with Verizon.
I don't have personal experience with Voicestream, but since I know they have a roaming agreement with Cingular to over them in some areas, I'd be leery, despite their low prices.
From all I've heard and read about cellular service, you get what you pay for, nothing more.
The results of
this AT poll, are fairly telling. As I type this,
- 100% of Nextel voters are satisfied;
- 91% of AT&T voters are satisfied;
- 86% of Verizon voters are satisfied;
- 85% of Sprint voters are satisfied.
The order of their ranking happens to also be the order of their respective costs, with Nextel being the highest, followed by AT&T, Verizon, and finally Sprint.
Voicestream and Cingular (AFAIK, the lowest cost providers) are also at the bottom for satisfaction. 72% of Voicestream voters are satisfied, and
only 60% of Cingular voters are satisfied.