So far coverage has been pretty good. Coverage at the Universal Orlando Resort has been awesome! I noticed several microcells in both parks last time, apparently they are Sprint. I got coverage on every ride so far, even deep inside concrete. I know that VZ, Att (my T-Mo phone at the time showed no networks), and T-Mobile do not work in those places. There are microcells on top of the Back to the Future ride, I think one across the water from it near Jaws (could be their radio's though) and I forget where I saw the one in Islands of Adventure (Jurassic Park?). I'm gonna look at apartments tomorrow, so we'll see how Sprint works across the city. Edited to add: I've noticed a lot of people here use Sprint. Very odd, I'm used to seeing 75% Verizon users.