This vibrator is the perfect length for me, as well as the perfect girth. The dial is sensitive to changes, but while using it, there has never been a problem with the speed changing. It is very quiet on the low speeds, and impossible to hear whilst being used. The top speeds are louder, but the lower speeds are just as good too. It is also not too big, and easy to carry around. The colour is quite bright, so if you are taking it with you, then be sure to conceal it well! Also, at first it smelled odd, but after a few uses and cleanings, the smell is gone completely. My favourite toy!