It is silent, I have to say. I use it on a bass drum with Millenium QuiHead Mesh Head and I can say that the neighbours will not be bothered by it since it renderes it only perceptible to the person playing the drums. Response wise, well, it is foam, it does not have the mass and weight of a normal beater,, so obviously it's response will not be the same, not even on my Tama Speed Cobra, other than that, it is quite decent all in all. As others have pointed out, I think it is a bit pricy too, we will see over time if it resists the time or if it will desintegrate before making it's price worthed.