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The Tantric Mantra is a great rabbit for beginners. It is this, but has low vibrations. I would say it is a very nice toy. The controls are easy to use and there is lots of settings to choose from.
The Tantric Mantra isn't a bad first rabbit for users new to them and it has all of the features you'd normally want in a rotating headed rabbit, but unfortunately it just didn't come through on it's promises.
A big concern of mine has always been the noise level of a toy. I generally live with others, though my current roommate doesn't care much, but I still don't want to use something that sounds like a jackhammer. The Tantric Mantra is a toy that actually made me wait till I was home alone to even try. Even then, the noise level was distracting, which made the toy difficult to use. Combined it with the limited functionality, I wouldn't bother with this product.