After reading mixed reviews from Amazon and hesitating for months, it's one of those things where you just gotta find out for yourself.
Does it work?? YEP!! Directions say to spray 3 times, but no more than 10. Well... 3 times is way too much for me. My wife kept asking how I've lasted so long and that I must have done something. IMO, one spray is enough. In fact, 1/3 or 1/2 spray is all I really need.
Downside? With a numb head, sex doesn't feel as pleasurable. The product does what it says it will do, but there's always a sacrifice you gotta make.