What do you like about the Eroscillator?

It's had rave reviews though it's very expensive.

I love its different speeds. The three settings have enough contrast between them to be noticable. Plus you don't have to worry about batteries dying at a bad time.

My wife felt the Hitachi was too powerful for her. For years now she has coveted the Eroscillator, and declared it as her all time favorite. She says it's an entirely different feeling from the Hitachi due to it's oscillating pattern. She also only uses the nubby/or is it the grape attachment. I have also provided her with many other expensive toys, but the Eroscillator remains number one.