I bought this as a high compression mouthpiece to use for upper register playing. After an initial adjustment period, during which I frequently "bottomed out", it's proven to be exactly what I was hoping for, providing good support with a comfortable rim and plenty of sizzle to the tone.
The piece is of high quality (I believe these reissues may be manufactured by Schilke). For me, notes below low A don't speak especially well, hence only 4/5 for response, but given the intended use of this mouthpiece that is unsurprising, and not really a problem.