Pros:

-Can be really fun
-Nicely designed
-Not to hard to get through

Cons:

-Kind of bland/bare but oh well
-Meh

Conclusion:

Overall I recommend this campaign to people playing with there friends, don't think it would be any good alone. Than again what are you doing playing alone in left 4 dead ?

Pros:

-Favorite campaign of all time.
-Tons and tons of fun
-Tonssssssssssssss of fun with friends

Cons:

-There are none

Conclusion:

I love it. Also i drove my car across the bridge. And I don't care cause I love it

Pros:

-Well made
-Zelda
-Custom content
-Tons of fun
-Pretty much a perfect replica

Cons:

-Can be irritating

Conclusion:

Very fun campaign

Pros:

-The levels are fun
-fun with friends
-alot of work was put into this

Cons:

-Final level is the worst of all of them. Very lackluster and not super exciting.
-Can feel cramped

Conclusion:

Overall I think its very fun to play ...again I can't stress this enough, with friends. 

Pros:

-Great atmosphere, ended up taking tons of pictures because of some of the landscapes and views.
-Very fun to play.
-Amazing landscapes.

Cons:

-Sometimes too easy to get lost.
-Me and my friend died so much on the 2nd level it was hard to get to the end. (This was due to the server we were on having custom tanks and jetpacks and weird stuff)

Conclusion:

This campaign is really fun : ) I recommend it to tons of people. Again, one of the problems is getting lost on the first level, the 2nd one has some arrows to direct you.

Pros:

-Awesome
-Anime
-They make the computers more interesting

Cons:

-If you don't want anime on your screens do not use this ? 

Conclusion:

Its great if you want anime on your monitor screens in left 4 dead

Pros:

-It can be fun ? 

Cons:

-Pretty boring overall...you just continue to walk up to the plates that appear and press e on them and than a few zombies come out.
-Don't see why people are giving it a 10/10

Conclusion:

Meh

Pros:

-amazingly well done
-rupees and other custom items
-a working shop
-the levels are spot on
-Tons of fun

Cons:

-fire temple can be a bit tedious with glitch boulders and skulls that stop you mid jump if you touch them.

Conclusion:

Amazing map and worth the weight

Pros:

-Very nice maps
-A lot of fun with friends
-Environment is nice to look at and go through
-Campaign was well thought out
-As I said tons of fun
-awesome finale

Cons:

-Ice is a puny bit too slippery in the finale but does not take the fun away
-nothing else

Conclusion:

Really awesome campaign with a great finale. Recommended to anyone.

Pros:

-All Mutations whenever you want to play them.
-Custom Mutations for more action. 
-Nearly endless fun.
-Great for mutation fans.

Cons:

None in my opinion. 

Conclusion:

Great mod for anyone who would like all the old mutations plus new ones. 

Pros:

Really cute!
Smile while your sad and playing l4d2.
Epic drawings. 

Cons:

Sometimes to cute for people who cannot handle the cuteness. 

Conclusion:

Great for anyone who wants cute l42 versus HUD icons.