I really like them -I have 3!- the chest strap keeps your rifle secure and your hands properly free for sticks, etc. and the strap works as advertised, with the short clip-on end section, as a sling for carrying shot muntjac and roe. The only disadvantage is that the chest strap may get in the way when not used, e.g. once in a high seat, but it is the work of moments to remove it, roll it up, and put it in a pocket.