Re: Vortex Strikefire worth a shit?
It's ok for what you pay.
The dots on the two I had were plenty sharp, the controls worked and battery life was acceptable. They took hard use and bouncing around pretty well without moving point of impact. THe controls were hard to use with gloves on, I ultimately didn't care about red/green (unless it was a TV show) and just wanted a damned on/off. The optical doubler was a nice idea but pretty worthless. For running around the range and the occasional zombie, perfectly fine. No issues with it on either a FAL or an AR, and even had one on a Marlin 45-70 for a season. I never worried about witnessing to irons.
I did send one back to Vortex for repair because our cat chewed a hole in the rubber covering the switches. Vortex replaced it. Would I buy another one? Sure, for plinking and playing they are fine. For anything 'serious' (like a 3 gun match) I would probably go a little higher end.