Pros:

- very diversified
- immersive and authentic
- atmospheric
- epic finale 

Cons:

- AI problem (See conclusion)

Conclusion:

A very detailed and nice campaign, very impressive! 
It is a bit difficult, even on easy, but it is ok IMO, it is a nice challenge!

The mentioned AI problem:
Sometimes, when you get caught by a special infected or thrown down by a tank, the AI companions just stand there, completely  ignore you. They even start healing up with medkits while you slowly die next to them. On the first playthrough this happened to me twice (first where you fire the cannon in the second map, a smoker grabbed me and second in the Palau Nacional after a tank knocked me out).