I have NF's with ZS that I have never even gone to the trouble to set, easy as it is. ZS may be important to the PRS guys, but for me it is a waste of money, because of how I mount my scopes, which is a few MOA above rock-bottom sighted in at 100 yards and my turret cap set to show "0" there. If I crank up 30 moa to shoot LR, I can just look at my turret to see that I am back on the lowest revolution when I crank back down. Or I can just crank down to rock-bottom and back up to "0". I don't need to urgently spin it down to a ZS to get back on at 100.
That said, as interesting as the high-end Sightrons sound, I'm not buying one because I ran out of patience with dot reticles years ago. I mean, they're okay, I can make one work, I just don't see the point, and don't want to put up with "reticle blockage." I want a very thin SFP reticle, and what NF makes seems perfect, whether it is the FCR-1 in the Comp or the MOAR-T in the ATACR.
EYE BOX: A lot of times with my NF's I just keep shooting and adjusting the power "to suit," without looking at the number, and then later when I do look I see that I have been happily shooting at 50X (with the Comp), or at 35x with the 7-35 ATACR. Now, was my "eye box" bad? Yeah, I suppose, but I'm not shooting PRS, I'm sitting at a bench. My NF's have plenty of eye-relief, and that is what matters to me. I don't want to be pulling the trigger when my eye issn't perfectly centered in the scope anyway, do I don't care that the tight eye-box at high mag forces me to do that.
Finally, while I like a heavy setup, I prefer to have most of the weight in the rifle, not in the scope where it is constantly trying to tip the rifle right and left. I can't see going from my 28-oz Comp to a 43-oz Sightron just to get a slightly larger mag range (10-60 over 15-55) and a goofy dual-ring parallax adjustment. I'm sure it is really cool, but it adds weight, no doubt, and I have zero complaints about the single-ring adjustment on my NF's.
I buy a high-end scope to use for years, possibly for the rest of my life. A $200 - 400 price difference is not something I am going to factor in to the selection decision.