The short version is they are badass. We were skeptical at first and I'm sure you'll hear strong opinions in both directions, Ive had quite a few of the 5hd and 6hd mounted for testing as well as sent them to buddies and have yet to have any complaints or problems. They're light, glass is great, the zl2 turret system is a step in the right direction for them and best of all is they track! After all the reported tracking issues with previous models we made it a point to try to break a couple and have so far been unsuccessful. Time will tell but I don't think you can go wrong with them. I'll be running the 5s on my carry rifles this year and the new 6 on long range rigs, as well as a handful of people I hunt with. If problems arise lrh will be the first to know. Good luck on your decision and feel free to pm me if you have any specific questions on them, we have quite a few and I have a good bit of range time behind them. Happy to help.