I took it out today and it worked great until it started to rain then it got foggy and wet so it didnt work as well but i like it alot. its cheap and accurate

I wasn't certain that Barska had put together a reasonably priced red-dot, but I was wrong. Looked at it in the store and purchased. Immediately took it to the range on my Buckmark. Installation was so-so, as the dovetail isn't designed specifically for picatinny/1913 style rails, but for some mishmash of common rail sizes. Not at all quick to install.
The battery compartment is nearly impossible to manipulate as the machining on the threads is horrendous, making opening and closing it entirely too difficult.
The killer was the knob: it didn't work on the 1st and 2nd positions, and thereafter only worked when the knob was placed between settings. Want it too shoot? Put the knob between 3 and 4... but don't shoot too many rounds that way, or it will turn off from the recoil (of a .22!).
Nope. Not even twice.

Appears there may be a problem with the left/right adjustment.

bought it because I liked the price, look and options. sigted it in, and after 50 rounds or so the glass cracked.

The battery is located in the intensity dial. There is a slot on top you can use a coin or flat head screw driver but you have to hold the dial ring under the cap to unscrew