Overall, this device is very good at its job. The only part that heats up in the tip. The vibrations are very strong, and there are many different vibration patterns to try. I think I like the little "licker" attachment on this better than a rabbit, which is saying a lot. The handle is so smooth that I can't feel the buttons and I have to look to find them, which is only really annoying when I want to turn it off. But it performs quite well and I like it. I wish a new model would be created with embossed buttons that I can find without looking, but I think this is my new favorite.