I'm far from an optics expert but really like the scope for my uses. I didn't get to use it a ton on my elk hunt because of the nature of the hunt (mostly dark timber). That said I did spend some time looking at antelope with it and viewing some elk on a limited entry unit a couple of miles away across a canyon and I'm still really liking it.
I compared it to my brothers 65mm Razor HD one evening as well. He was convinced it couldn't be as good as his Razor but after looking through them side by side he admitted that he couldn't claim the Razor was better. To my eyes, the Kowa is a bit sharper, more vibrant and surprisingly seemed to edge out the larger Razor in brightness as light faded. Granted, this was a comparison for one evening so I don't have a comparison under a lot of different conditions but it was still telling for me. What I did notice is that the field of view is much smaller with the Kowa. For me that's not an issue as I mainly use my binos on a tripod and only bring out the spotter if I need to investigate things further. I can see it might be an issue for guys that spend a lot of time behind a spotter as their primary tool for locating game. Again, for me, that trade off is well worth the weight and size savings. It means I'll actually pack it and use it whereas heavier scopes often stay at home or in the truck for me. I really wish it had a rotating collar and armor but otherwise it's exactly the scope I was looking for.
I read somewhere on here today that Luke Moffat is going to be doing a review on this scope soon so you'll have another, more qualified opinion shortly.