Do you mean Sterling at Craig airport in Jax? I too am considering going there soon. I hear it is cheaper than North Florida Flight Center, which is an FBO next door to it. Thats really all I know for now but I will get more info in the near future.
Once I completed my PP flight training at ATP JAX (also at Craig) I went to Sterling and got checked out on the C172 SP. I flew it out to Cedar Key with my wife (and my ATP instructor) for dinner. Their equipment is beautiful, and their staff is very friendly.If you are pursuing your PPL you may also want to stop by the ATP campus which is right next door (to the north of the tower) just to get another perspective.