So i requested this for my girlfriend because she really wanted to try a clitoris pump. When it came in the first thing i did, thinking it would be a good idea, is put it on my arm and pumped it. I was quickly surprised at how strong the suction could get. When it was time to finally use it, i fumbled with it a bit, trying to get it in the right position while still getting suction.
The problem i noticed is that it took a little bit of work to position it over the clitoris while still giving it a nice seal and this was only worse if lube was applied to the edges. Finally though i got it working and started pumping away.
A heads up, if you are a male using this on your female friend/wife/girlfriend make sure you communicate. It was very easy for on pump to put her over her comfort level. That being said she loved it, she even took the pump from me and made me wait by while she enjoyed the vibrating bullet.
When used properly she will be more than pleased and though it wont bring her to climax, it will definitely get her going!