The first book, Heist Society, was an absolute rip-roaring hoot! I finished it in two sittings and my wife read it the next day and enjoyed it. I just found out recently Ally Carter is from Oklahoma too. Gotta be something in the water, folks! :)
The first book was optioned by Disney for a movie and it will be a blast. If you haven't read any of Ally Carter's Gallagher Girls books, or the first book in this series, you're truly missing out.