Pros:

Excellent Scenery and atmosphere
Pathing is interesting
Unique ending
Cliff Tank

Cons:

Too many hordes

Conclusion:

I loved this map, but the way you kept sending hordes at us over and over again gets really tiring. The amount of danger in the campaign is interesting, and the odd spawning pattern of SI keeps it kinda fresh compared to other L4D campaigns

Pros:

Excellent design
Great Visuals
Nice storytelling and custom enemies

Cons:

Very difficult
Versus is supported, but map is not optimized for it (final stage gives you 90% completion just by walking into the boss room)

Conclusion:

Fun campaign, needs a few tweaks to be perfect. I wasn't a fan of all of the random video game references that don't make sense in the context of the levels, but it is rather good anyway.

Pros:

Interesting Atmosphere
Enjoy the music and the ability to go underwater

Cons:

Really cramped
too easy

Conclusion:

There's nothing stopping you from hitting the radio and then running back through the long hall, then climbing up the ladder and hiding out at the top where the zombies only have one point of entry. I really only had trouble when 2 tanks at a time started showing up, and even then I was able to get a silver medal without even trying

Pros:

Amazing atmosphere
Enjoy the Indiana Jones feeling of the finale
Authentic sounds and effects in ride
interactive interlude in second map

Cons:

Shorter than average campaign (but is that really a con for something this interesting?)

Conclusion:

One of my favorite campaigns.