I have the new Z5i +. So far it’s been excellent. Glass is great. Twisted and turned pretty aggressively for the last couple of months on the turrets. No issues. Tried to bump and bang it a tad (not a drop test). Definitely an upgrade over the original Z5i.
I’d buy another for sure. And that’s with currently owning everything from NF, S&B, Kahles, ZCO, and everything in between. It’s an excellent lightweight hunting optic.