Pros:

+The lighting and bloom is OUTSTANDING
+Very detailed areas
+Really good custom textures
+Good concept
+A very long and fun journey
+The mall had great detail and range of stores
+The mission walk through was nice
+Keycards for additional stores
+Good placement of supplies, not too many first aid kits
+The kiddie rocket with the turret

Cons:

-The voice acting got quite annoying to me
-A little more difficult for Normal
-The tank on the beginning of Chapter 2 was difficult to take down, especially with the horde. He took down my team 3 times with the car until he finally didn't spawn by the director
-When my teammates died from walking outside of the mall in Chapter 3 they didn't seem to respawn
-Neither me, or my team listened to the announcer so we got very confused as to why we kept restarting in Chapter 3, as the announcer only tells us what to do once
-Custom music
-The AI is dumber than usual
-Long loading
-Finale wasn't too great
-AI falls behind during the finale
-Some areas had bad lag
-The forklift
-Out of all the Mall-related lines the survivors vocalize from Dead Center, none are used. There really should've been better custom lines

Conclusion:

Very good campaign. The talker does get pretty annoying. The cons are something to think about. The maps have an enormous amount of detail, and the bloom is amazing. This is definitely worth trying.