Well.... maybe my expectation was too high.
This product is ..well..not so good. maybe just beacuse of the inner structure of STU sleeve is too boring, the quality is good though. very soft but the case looks a bit cheap.
The feel is just OK... maybe I am too insensitive, this thing alone cant make me climax. I have too watch porn to help me.
So my suggestion is if you really want a good feeling rather than training, try to order other type of sleeves.
And also keep in mind, NO ONE will ever think this is a flashlight, and if you dont have many privacy, dont order it. it takes a lots of works to cleaning up and hard too hide.
But overall, this product is OK, worth a try.