I was able to get mine mounted up when I was CONUS in Nov but it rained HEAVILY on the only day I was able to shoot, so I stuck to pistols and some other toys but didn't get to do any shooting with this scope. My first impressions were that I liked it a lot. It's BIG, and heavy, but you don't buy a 56mm scope with a 35mm main tube if you care about how big it is. The glass looked really nice, but I'm not as much of a glass-whore as most people. After being accustomed to the H-59, I found the H-58 to be a little thick, but I'm hoping to do a reticle swap next year when Leupy picks up the H59 reticle.
I really like the locking turrets, which were very intuitive: you just pinch them to turn them then they lock once you release pressure.
I don't know that I'd pay the 4k retail price on this scope, but there are some great deals available from time to time, Scott at Liberty Optics had a great price on them a while ago, and in the 3k price range they're a hell of a scope.