Pros:

+Good lighting ( I use a mod that improves the lighting. The results are awesome!)
+Good amount of supplies
+Challenging, but fair 
+Detailed environments
+Custom sounds
+That event on the 3rd map escape or get blown up!
+The prison! Holy crap loved it! (But...)
+Goo hazard
+Those 2 boomers fighting each other at the end of the campaign, lol!

Cons:

-The prison event to shut off the alarm was a bit hard. Perhaps reduce the amount of zombies that spawn?
-Going from one place to another didn't really make any sense. (Not a con, just wanted to point that out. Doesn't really matter anyway.)

Conclusion:

This campaign was amazing! I don't normally play long campaigns, but this is one of the few that are actually worth playing through. I've seen people complain about the maps not giving enough directions or it's too dark, I say forget them. There's mods in this site that give you brighter and bigger flashlights. (Think outside the box.) I use it so the dark maps don't bother me. In fact it makes the campaign more atmospheric. I read an update is coming. I really hope you won't dumb the difficulty down for those players who need their hands to be held. Amazing campaign again.