With all the talk of them being so easy to break, I have been very careful with mine, I put a bunch of o-rings around it, I have only knocked over twice. The thing about it, that I am wondering about, is how long is the control head going to last? It seems like somehow, the settings on it, just go wonky on me sometimes. Today it started just turning it self off, just after I used it. That happened 3 times, now I have been using it for 3 hours and its never turned it self off. I do like all the options with it though, this is the first devise that I have had with the vv vw options on it, but now after all the reading I have done, I will be getting a provari sometime, just because I need something, that I don't have to worry about dropping.