I have a G&P 551 clone.
Standard screw mounts suck.(kept coming loose) *fixed problem with loctite.
Holds a zero (16in. AR carbine)
Bright enough to see in daylight. (with the green rec.)
I get some glare off the glass.
I don't know about battery life yet (havent had to replace mine)
The recticle is the problem for ME. It's a standard 65moa ring with a *advertised 8moa dot. The dot is a tad bigger than 8moa. (more like 10+moa)
I think I payed $75 bucks shipped.
These things are for the range only. I would never trust it with my life.
I don't know what kind of plinkin you do, but @100yds, shooting for tight groups is out of the question.
If all you want to do is get on man-sized targets quickly at 50yds. or less it will work.
Seriously though, just save the $75 in your sock droor, and put it towards the real thing. Or if you want a lightly used one, shoot me an IM.