My only grip is with the nature of image stabilizers and a high power magnification. Aside from the limited field of view, you have this "vertigo" drag from the image stabilizers. If you're looking for a sniper rifle scope's clarity, it's great -- but I find they're not as easy to simple pick-up and used them from either scanning the horizon or picking up a target.

The only other issue is that -- regardless of use, the batteries need to be replaced once or twice a season.