AT&T depends on marketing to promote an image of greatness. But in reality, they don't have the best coverage. Other carriers took them to court to challenge their statements, "Fewer Dropped Calls" and "More Bars in More Places." The court agreed that their statements are indeed factual because AT&T currently has more cell sites than other carriers.
However, sadly for us users, all those cell sites aren't in the right places. Therefore, other carriers, with properly located sites, do a better job of coverage, even if they don't have "more bars in more places."
If you're looking for a new cellular provider, check the
Florida Cellular Review Page, or
How to Switch Cellular Carriers.