um i'm not sure who would be more inclined to use it. but it seems to be used for pegging so woman/ woman or woman using on men combos? i guess it's who you talk to
Either could use it (the short end usually works well as a handle), but there are a few things to keep in mind. It looks like it wouldn't work well if you were trying to hold the "bulb" end anally, and most people still need a harness if they want to penetrate their partner anally.