Things I liked:I liked the glass it is very clear and focused real well at all ranges. Really helped my grouping. Things I would have changed:The first scope I received shot very well but the mil dot failed after having it in my possession for about a week. The battery checked out good, just to make sure I replaced the original battery with a new battery, mil dot still refused to light up. I returned the scope and received the replacement in about two weeks (back ordered) Mounted it on my Beeman springer (850 FPS in .177 cal) took ten shoots with the new scope, after each and very shoot the cross hairs or retical lines moved. The vertical line moved to approximately 10 o'clock and the horizontal line moved accordingly. Now I was looking triangle cross hairs? I ask why does just about everything have to be made in China? What others should know:Well I guess the best thing to know about this scope is DONT BUY IT.