Pros:

-Map flows well enough.
-Some really nice set pieces if you take the map slowly and look.
-Bots were intelligent enough.
-1st map was visually pleasing.

Cons:

-Same old scenery you'll find in a lot of other maps.  (Mall, church, cemetary, CEDA center, train tracks, airport)
-Comic effects seemed rather tacked on.  I only noticed them in the first and last maps and even then they didn't leave much of an impression.

Conclusion:

The campaign as a whole felt like a compilation of various other stock maps.  The different settings flowed surprisingly well together but I play custom maps with the intent to experience new scenery, not a summary of what I've already seen.  The only things that were new and interesting were the hidden set pieces for those who would actually look for them.