Pros:

Good challenge
Plenty of special infected
must use a mix of melee and guns to make supplys last
saferooms and routes well marked

Cons:

Finale to easy
The school feels like a maze
too many rooms to explore in the school

Conclusion:

Was a fun campaign, cant wait to play it with a couple of buddies.  The finale is a little too easy as another poster has already mentioned.  You can camp the saferoom or the classroom and get through it without a nick. The school halways and stairwells all look the same, gets confusing. Other than that a real well made campaign two thumbs up!