I also have the FFP with zero stop, mil hash... this is spot on from my experience.I don't have a lot of time behind it, but I've been pretty impressed with my 3-16X42 FFP Mil S-tac. Glass is clear. A little better than my 3-15 SWFA, not as good as my 3-18 VX6. I like the reticle. It's simple, and doesn't disappear at lower mag. Illumination dims enough to work in low light, but has some halo/bleed. Perfectly usable, though. Turrets are fair. A little mush, but clicks are positive. Tracking is spot on. Zero stop is simple and easy to set. Mag ring is about the right stiffness. No idea how it will be in the cold. The little flip up lever is a waste of aluminum. The mag ring has plenty of grip, and is on the sharp side for comfort.
No idea of long term durability, or zero retention.
Overall, it's a lot of scope for the money, IMO.
Jeremy