Quite a while ago, I was once a student at Sierra Academy. Excellent flying environment, and I love living in the San Francisco bay area (in Alameda for me). I had an excellent flight instructor (now flying for the majors) who was very knowledgeable and caring. However, at the time, the planes were not what I would called up to par, and the school building itself was extremely old. All in all, I was quite pleased with the overall training.