Pros:

1. There were surprises in every corner on how good it looked.
2. Very intense
3. Something I have been waiting for, for a while

Cons:

1. It gets kinda claustrophobic

Conclusion:

This collection of maps are great and they really give you the feel of Counter-Strike and Left 4 Dead. I was quite surprised with this map pack and I hope to see more from this guy, great job!