I just unboxed my 5-25 MK5 last night and my initial impressions are very positive. First thing I did was compare the glass to a ATACR F1 and Gen 2 Razor. Glass was easily as good as my ATACR F1, the razor was behind a little bit on glass clarity/resolution. I didn't notice any CA which some have mentioned in the past which I believe was mostly in the 3.6-18 MK5s. I then compared the turrets on all 3 models. Nightforce turrets are pretty darn good, very firm and audible. Leupold are nice and firm with good audible clicks and then the razor are firm that aren't that audible. Weights good on the MK5 not as heavy as the nightforce and quite a bit lighter than the razor. Overall this is exactly what I have been looking for in an optic. I don't get caught up to much in price and more expensive doesn't always mean better for me. Yes maybe in glass quality but I was looking for specific features that the MK5 was the first to offer. I wanted an optic with around 10 revs per turn (MK5 has 10.5...check), tree reticle with center dot (check), good glass on par with my gen 2 razor or better (check), The price which Leupold has offered this optic is just a bonus to me at this point. Looks like Leupold has a winner with this optic. I will be putting it through its paces this weekend with the 223 trainer. I can report back after a few range trips on how the optics performing.