I have one and it worked well enough. No failures to fire or fall. It was about average as far as tunning and ease of setup. It is simple and has not cables or linkage to get hung up, but it is also possible to hit your bow in such a way as to cuase it to drop without firing. I personaly prefer the Muzzy zero effect as far as drop away rests go, but that' s more of a personal preforance.