I have one and like it quite a lot. Kudos to Cateye for replacing it TWICE after it was lost, coming off my tail bag on two separate rides. After the 2nd time, I mounted it to the seat post and it has been fine. I like that it uses AA batteries which last quite a while before needing to be replaced. I'm not sure if it gets as much attention in the daytime as one of the better 1W LED lights, but I'm happy with mine.