Ive own one for a couple of years and just ordered my second. Both are for AK47. It's held zero since the day I've mounted it. I've left it turned on for a couple of days by mistake and the battery is still in use. the adjustable dot size is a plus. You can't beat the quality for this price. And it just plain works like it's suppose to. Easy to mount ans sight.
Pros: Small, Well built, looks good and functions
Cons: none yet
This review was written in the old system and had content requirements that are different than reviews written today.