I use Sunstate quite frequently when over there & have always found them very good, decent aircraft & plenty of instructors if learning rather than joyriding. I certainly prefer the class D controlled environment to Winterhaven & the airfield is good & central for the Kissimmee / Disney area.
Horses for courses I suppose but they are very well geared up for training, have been around for years & always seem to have plenty of happy looking students & numerous announcements of student passes on their newsletters when I'm there so I guess they must be doing something right.
If learning, the challenge of a controlled environment (particularly getting used to & regularly practicing the increased radio workload) may be an invaluable experience. I can't fault them at all - a cheerful, well maintained & run flight centre that I don't hesitate to recommend.
That's my twopennorth, regards, enq.