Low quality and unreliable - Swampfox Sentinel II 1x20 Dot Sight

I've had three of these dots, all of them had issues in under a year and less than 1,000 rounds. I carried one for everyday for almost a year straight, it held zero very well, the green dot was decently crisp and round. The finish on the metal differed drastically between all three of them straight out of the box. The glass coating differed between them as well. The shake awake is hit or miss, requiring violent shaking to turn on, if it turns on at all. There are higher quality dots for less money, I do not recommend buying this dot. DO NOT CARRY THIS DOT.