This mouthpiece was recommended to me by my teacher at the Royal Conservatoire of Scotland (formerly RSAMD), and when I purchased it and starting playing it I immediately felt that this was an extremely good mouthpiece. It produces an excellent quality of sound, with dark, sonorous, resonant tones in the lower registers while allowing a more brilliant tone through the higher notes, and even allowing an entire octave of altissimo above keyed F#. The narrow tip opening allows for a loose embouchure and an excellent ease of blowing. Its response is not brilliant however, but is still of a very high quality and easy to overcome and get used to working with after a bit of practice. This is a great mouthpiece which I would recommend to those looking for a very flexible, easy to blow mouthpiece, but not for those looking for one with a longer tip opening.