When I wanted to purchase this thing I only saw one review on it. I’m always a little sketched out with those one review products. Anyhow, this thing rocks. I cant imagine it breaking and its more powerful then I can see anybody wanting. I can only stand it up to the 5 notch before it hurts and it goes to 30!! Insert able length is a little over 8. If you’re bigger then that, you probably want something else. Once again..SUPER powerful. Pretty sure you could explode your dingus with this thing.