I bought one a couple of weeks ago, but haven't mounted it yet.
Scott's Outdoors in Jay FL has the Optika6 3-18x50 with Dicrotech 4D reticle for $499. After reading and watching some reviews on them, I couldn't pass that deal up.
It's on the heavy side...but like one of the reviewers said...you're not going to get this kind of quality in a lightweight offering for the price Meopta is selling them for. There's a sacrifice to be made somewhere. Quite frankly, mine is going on a rifle that will be used in shooting houses anyway, so I couldn't care less if it's on the heavy side.
Reviews show repeatability when dialing (it includes zero stop), it holds zero when abused, and it performs very well in low light.
I'll know more when I get mine mounted and put some rounds down the tube.