This has been, hands down, the best **** toy I've ever purchased. It does everything I've wanted out of e-stim implements, but never been quite able to achieve.
On low settings, it will slowly build up from slight teasing to multiple orgasms that aren't overwhelming, and can be maintained for hours if you're so inclined. Put in the hands of a sadistic partner, you're in for a wild ride of teasing and pleasure until you're absolutely spent.
It's not quite the same sensation or intensity as a typical blended ****, but it's satisfying and very sustainable for long sessions.
I struggle with pelvic floor tension, which can lead to struggles with circulation and sensation down there. The direct stimulation of nerves internally and externally on low settings seems to help alleviate a lot of this; so I would also personally classify this as a therapeutic device in my books.
Definitely worth the purchase!