Let the hive mind of Engadget get that for you.
"Hi guys, I'm moving to NYC next month and wanted to know if I should stick with Sprint or switch carriers. I'm aware Sprint's cheaper to AT&T; and Verizon and I like unlimited plans. Thing is, coverage is spotty where I am right now, 3G is a joke (no 4G, either). Will this get better when I'm in the city or should I start shopping around for a new carrier? Thank you, Engadget!"