I will admit that I was skeptical about making this purchase as for some, it seemed to be a total miss, especially when it came to scratches and dents on the casing. The only cosmetic flaw I have is a small, and I mean TINY nick on the left corner and you wouldn't notice it unless you were looking for it.I was afraid about battery life and charger but the computer charged up super fast (I think my charger was a brand new or almost new charger when looking at it, a bit on the shorter side, but had an Apple adapter that I switched out to make it longer). It so far has proved to have a pretty good battery life, even when the screen is up full brightness, as well as the backlight of the keyboard.It came with MacOS Sierra installed and I was able to update it to MacOS Mojave which I am pleased that it is compatible with the newest OS. I'm so happy with my purchase and couldn't expect anything better.