I like this collection of tones/beats. I have it on in the background during sex. It worked for me, it did what the track names said they would do. I lasted 4 x as long as usual, which I attribute to extend, which made my wife very happy. Excite, had a positive effect on us both, we are both excitable any way, but this altered the arousal pattern slightly in that we were both able to control ourselves a bit more than usual. The same story with ecstasy, although that worked for me, I think it had a bit more of an effect on her, she came a couple more times that usual and it was more intense, although it has to be said lasting longer than usual helped too, .The comfort has a huge effect on both of us. I feel that this was a good way to induce a more relaxed state of mind. This was well worth the money, and we will will be using it again.