Didn't work for me. - Barska 1-4x28 Mil Dot Reticle Rifle Scope

I wanted to like this scope it has all the features I was wanting for a cheap AR scope, such as lockable turrets, multi colored lit reticle, small size and a nice mount. But, it had extreme fish eye effect at 1X and not much better at 4X. I focused the reticle to my eye at 1X only to have it blurry at 4X so I focused at 4X only to have the entire sight picture blurred out at 1X, it would not remain focused if the power ring was touched after set. I really was not expecting much at this price point but it was just not usable for me regardless of price. maybe just an isolated bad one? didn't care to try another.
I hate to be so negative but this was my experience.