I work with a wide range of flutists in the San Francisco Bay Area: professionals, students, accomplished adult amateurs, the semi-professional, the “intermediate” player who doesn’t feel like a beginner but doesn’t feel like he or she plays “very well”, and beginners of all ages. So I work on both very high end instruments and on student instruments.
Occasionally I will run into a flute that I will not work on because the manufacturing of the instrument is so flawed that it is a disposable versus repairable instrument.