I did my FAA PPL there last September. Highly recommended - very friendly operation run by a nice British lady called Annette. She won't rip you off, was clear up-front about the costs of flying, accomodation etc.
I thought the instruction was of high quality and I got on well with my instructors Melanie and Ken, say hi from me if you go!
I particularly enjoyed the location of the airfield, right next to the Space Center so you can easily see the VAB and the Shuttle on the pad from the circuit.
About the only minor downside to my experience there was a problem with aircraft availability for a week or so, several of the 152s happened to be in for their 50hr checks at the same time and the checks did drag on a bit. But they still managed to fit me in and I expect that is a rare occurence.
The FAA private ticket took me 5 weeks, completely ab-initio, and one of those weeks was lost to Hurricane Ophelia. Of course if you already have a JAA licence I'm sure the training would take much less time.