What's T-Mobile's service like in Upstate New York?

I recently discovered that I was bored with my service/phone at Verizon & that I want to switch to T-Mobile. I found a brand new pink, Juicy Couture Sidekick II which is very rare because they're almost three years old now. I live in Binghamton, New York & I just want to know what the service is like. Thanks so much, Toniann.