I hope so, too. Whatever the case, I've noticed far better reception with T-Mobile than I've ever had with Sprint (and this is way up in the Sierras, up near Tahoe; good cell reception is pretty much unheard of up here), plus I'm paying $20 less than what I was for Sprint even with the phone payments factored in, so I'm pretty happy with the switch, too.

Haven't tried international roaming (I've never left the continental U.S.), but having that available makes me less nervous about being able to get in touch with someone if I'm abroad.