Mount is difficult to get tight and not particularly secure, my sample tended to shake loose after a few magazines. Brightest reticle not bright enough in broad daylight. Also, rotary knob came loose after about 400 rounds or so, causing dot to disappear unless the knob is tweaked just right. Poor durability overall, so I guess you get what you pay for.
Pros: Cheap, multiple reticles
Cons: Bad mount, poor quality controls
This review was written in the old system and had content requirements that are different than reviews written today.