I had zero hopes of this being a viable toy I'd ever use. But I'm blown away by the power of the vibration and the multiple patterns. The only thing that threw me off a bit was how small the opening is. I'm very average, yet this just barely fit around the head. Which ended up growing on me, and may even be by design. It suctions a bit and stays on without holding it. But I find the most pleasure by moving it around a little while using. Absolutely astonished how good this thing actually is. I may get another just as a backup and will definitely be more open to trying others on here.