Pros:

-Texture is a lot better than the "Weathered M4".
-Looks absolutely great.
-The animations are fantastic.

Cons:

-None.

Conclusion:

It's a great skin and I highly recommend this to annyone. 
However, I do wish that arby would release an M4 skin for the M16 since I have a 3 round burst M4 and a full auto M16, which feels very inconsistent.
But that's just my personal opinions. Absolutely fantastic skin, thanks arby.