Hi Everyone and thanks in advance, I have a T-Mo Galaxy S4 that was SIM unlocked through unlocker. I've heard that the T-Mo S4 is better than AT&T for a variety of reasons, but more importantly that it picks up all of T-Mobiles HSPA+ along with AT&T's network. So in theory, having it sim unlocked, I could fully utilize t-mobile's service and at&t's service to their full potential. Can anyone confirm this? Reason I ask was I was speaking with a TMO rep once and he said the international unlocked version wouldn't pick up on the full spectrum of TMO frequencies, but it should be fine with AT&T. Ideally I want to get into a situation where I have the option to jump between the two through their full spectrum, or any mvno's that use their towers as well. Thanks for the clarification! Details and specifics appreciated!