Thanks for not coming close to helping answer the question.
LTE is great....if you are in an area with LTE coverage. But if not.....coming from the iPhone 4 which on AT&T maxes out at 3G and the iPhone 4S maxing out a HSPA+ 14.4.....I'm looking forward to seeing if the iPhone 5 can take advantage of any areas that AT&T has updated to HSPA+ 21.