Must have! Very soft and high quality material. I had tried a pair from another brand and didn't like them, but I loved this one. It's noisy and I don't like that much, but other than that it's a great asset.
The vibration frequency is adjustable, but the frequencies of vibration is not changing too much in between.. I love it when the two arms move together, which stimulates me a lot.
On the plus side, I see why this is a high-end vibrator - the wave function is very intense and a completely novel experience, the handle is ergonomic, and the materials are luxurious. The vibration and motor are quite strong. On the downside, it is loud. But the bigger issue is that the vibration options are disappointing; there is only one vibration setting (on or off) for the “rabbit” arm that is independent of the whole vibrator. There is also no way to turn on vibrations in just the wand without also having the wave function on, so basically there isn’t really a way for an external warm up before insertion.