Vortex is killer stuff. 90% of guys will never need a "mil spec" optic, even if they think they are tacticool enough to buy one. I run the shit out of my Vortex stuff with no issues whatsoever. My AK got knocked out of my truck Thursday and landed directly on the optic and I had a 300+ round class Saturday. We checked zero before class and it was still dead nuts. 6" plates on the move at 80-100yrds no problems, its a Vortex SPARC.
Biggest thing with any optic is your zero, finding your holdovers, and practice them.