Big disappointment. Looked like it would be a fantastic vibrator, but it wasn't. The material broke down quickly, even with proper cleaning, drying and storage. It did not have the power it claimed to have. The shaft stopped working after a few uses. The butterfly was awkward and didn't position in the right spots or stay in the right spot. It would have been better if it had more functions and settings. If it had been contoured it would have made handling it easier. The control push buttons were not easy to use, you had to press slightly hard to change the settings, and of course when you are in the midst of pleasure it's annoying when you have to keep repeat pushing buttons to change the settings, sorta takes away from the mood.
Of course it is what it is, but I personally think that if the shaft had a slight curve it would have been more enjoyable. If you are a fan of the tradition rabbit vibrator, you may be disappointed, the rabbit hits the spot, the butterfly not so much. It was sorta clunky and awkward to hold. It was loud too, so don't use if you are trying to be discreet.

The positive things about this toy; the size and length are nice. The power was a little on the low side, but consistent. The batteries were easy to put in and remove. I could feel the waves the entire length of the shaft. You are able to reverse the shaft movement.

For the short time it did work, I felt it was over priced. It was not made with quality materials or built very well. This was definitely a big disappointment, it's just as well it quit working after a few times, because it probably would have not gotten much action from me.