I've had AT&T (Bellsouth Mobility before that), T-mobile (Voicestream before that), Sprint and now Verizon. All of them provided great coverage, especially where I lived in Orlando, but I've been with Verizon Wireless since 2011 when I switched back to the iPhone from Android. The coverage is great, connectivity is top-notch, the price is bearable and I've satisfied with their overall service. Therefore, I don't plan on switching anytime soon.