Go to the "showcase" forum and see what has been posted there. There are two threads about Headfirst.
It is outstanding. My son and a friend went their junior and senior years and it was their favorite showcase. It consists of both showcase-type events--60s, BP--and games. It is small enough that everyone gets individual attention. The college coaches both observe and help coach the teams. They each give a short talk about their school and the baseball program. My son and his friend were both recruited as a result of the showcase. Jupiter is a great facility. Feel free to PM with specific questions.
The director of Headfirst, Brendan Sullivan, was a pitcher at Stanford and was drafted by the Padres out of college. He has an outstanding organization and his staff is excellent.