I've got 2 of them, both with the CCH reticle, one on my match rifle and one on my backup/practice rifle. I really like them. Prior to that I used (and still have on different rifles) 2 Bushnell HDMR2s, which I also quite like but I consider the Mk5 a better scope. It has (to my eye) a more forgiving eye box and is clearer edge to edge on max magnification. I ran a tall target and box test for both of them and they were both well under 1% error. So far (400 rds on match rifle, 1500+on the practice rifle) the scopes have held/returned to zero and tracked perfectly from 100 out to 1500 yards. I also quite like the CCH reticle. Having previously put thousands of rds through rifles with H59 reticles (which I still like) I found there were some features of the H59 that I didn't need or want and the CCH serves as kind of a pared down Horus reticle. If you have any specific questions, feel free to shoot me a pm (or put it in this thread).