While I may not be an american citizen, and thus not be a user of AT&T, I have heard of them on numerous occasion. Also, while I may not be an adept of the LTE networks personally, I do appreciate their practicality and speed, although it all depends on the coverage of said network, thus may seem quite restrictive at times. Still, it is something that will be arranged with time and brought to perfection and it is something of the future.
AT&T is making large developments in its expansion process ( as you can probably tell from the title ). On June 26 it launched over 8 new markets. Those include Hot Springs, Arkansas; Visalia, California; Brainerd Lakes, Minnesota; Jackson Country, Georgia; Mount Vernon, Ohio; Minot, North Dakota and Grand Rapids, Minnesota.
Shortly after, AT&T LTE network expansion was continued, now covering 20 new markets. Those new locations include: Sherman-Denison, Texas; Corpus Christi, Texas; Searcy, Arkansas; West Point, Mississippi; Greenwood-Cleveland, Mississippi; Lawton, Oklahoma; Bay Minette, Alabama; Bremerton, Washington; Moses Lake, Washington; Yakima, Washington; New Ulm, Minnesota; Cape Girardeau, Missouri; Lafayette, Luisiana; Dunn, North Carolina; Valdosta, Gergia; Dillon, South Carolina; Beckley and Oak Hill, West Virginia; Atlantic City, New Jersey; Chico-Oroville, California and Homosassa Springs, Florida.
This is some pretty impressive work considering the fact that AT&T launched its LTE network in 2011. Since that launch, they have been constantly extending the coverage of their service. If all things go as planned, AT&T is hoping to complete their coverage until the end of 2013. Personally, I wish them the best of luck in that endeavor.