The reason for the 4 star review is because I just haven’t made it work for me. The system is quiet, out of the way, and works as described. I just haven’t found how I am gonna use it. I have a new pack that I am gonna try it on but my day pack that I typically use for 3-D just doesn’t work with the clip system in a comfortable way. If you currently use a sling it would probably be an upgrade and I would recommend it.