Pros:

Awesome looking zombies
Fits with a zombie apocalypse theme
makes me want to kill them from afar due to all those barbed wire sticking out of them

Cons:

No gibing for the zombies (not too big of a problem but mod would be better with gibing)

Conclusion:

Default common infected look for me

Pros:

Extremely detailed Disneyland setting
Humorous dialog from survivors
The Haunted Mansion!!!
Really smooth gameplay
Feels like Disneyland albeit an abandoned and overrun run
Brings back lots of memories

Cons:

Finale a little lacking
Lack of tanks in finale
Some areas are a little confusing as to how to proceed further
More full rides could have been featured

Conclusion:

Overall, this is one of the best custom campaigns I've ever played with lots of  nostalgia laughs. The maps are really accurate to Disneyland and will bring a smile to anyone's faces even those who have not been there. Although I feel that more rides should be shown in full, such as the Haunted Mansion, and a few other small flaws, they do not detract from the core experience.

Pros:

It's Half Life 2
Great details
No laggs at all
Works for both single and multi
Fits zombie apocalypse theme perfectly

Cons:

Uncommons also replaced making it slightly harder to combat some such as riot and ceda infected

Conclusion:

A really great mod for anyone who enjoys the half life series or are bored with regular CI but still want the game to be zombie themed