Vrooooommm!The rechargeable aspect is nice, especially since the battery tends to lag a bit after long use. But overall, worth every cent.
It's silicone, so if using a lubricant, it must be of the water variety. The texture is so smooth and velvety, though, it's almost not needed.
Other reviewers mentioned that the ribbing along the shaft can be uncomfortable.. and I've noticed that during particularly long sessions, it can leave me a little sore. Then again, that could also be the girth, too. Not entirely a negative, but if you're on the smallish side, it's something to consider.
I've played around with the rotation, and more often than not, opt not to leave it on the entire time. I need to work with it a bit more to find a setting I find comfortable. You can bend the shaft to alter the intensity of the rotation, which is pretty nifty, but given the girth and the ribbing, it can get overwhelming. At it's most intense, it felt like getting swabbed at the gyno's office. Just kind of an "aaah! Something is moving!" sensation.
The vibration of the bunny is just right. Those little ears tickle in all the right places. They're very squishy and I almost need a firmer material, but if I press just right, I cum very quickly. It took me a while to get the hang of decreasing the intensity (you have to turn it completely off.)
Ergonomically, it's comfortable to hold during use. In the heat of the moment, it's easy to hit the wrong button, though.
I love that it's rechargeable. It's nice to just pop it back on the base after cleaning it and know that it's revved and ready to go right when you want it.
It's not terribly loud, but probably able to be heard through a door unless it's being used under the sheets.