I am just writing to let you know that I finally broke down and bought a Robospanker machine. I have to be honest with you, I was really reluctant for a long time. I had been looking at this other spanking machine which is powered by an air compressor, and it looked like it would spank a lot harder. So I was convinced that was the one for me. But than a friend of mines called me and told me he had bought one of those air powered machines. I went over and tried it out, and it really did spank hard. But the noise from the air compressor drove me nuts. I knew I could not deal with that. And frankly, that is what convinced me to go ahead and buy your machine. And boy was I pleasantly surprised. It was a hundred times more quiet, and I swear it spanked just as hard. Maybe even harder. My ass was burning for a long time after that session. Thanks a lot for a great product. Sorry I was so reluctant for so long.Read more reviews.