Over all I say this is the best plug to use for solo or couples play. It can stretch your limits, for people who like BDSM play and are looking for a bigger toy, and for those of you new to butt plugs, it allows you to grow with your product.
The most helpful critical review
The incredible leaky plug.
The concept makes sense, however the material and construction could be a turn off. The plug is hard with no give and can rupture. I have seen other inflatable toys and those might be more useful.