Pros:

Very unique
Model looks exactly like in Twilight Princess
So beautiful
Physic movement in her dress and hair 

Cons:

Occasionally see some jigglebones 

Conclusion:

Better get it or else

Pros:

Well-designed M4A1
"Realistic feeling" when firing the weapon
Unique reload animation
Red Dot attachment (though you can't zoom in, wish you can)

Cons:

Would give occasional "squeak" noise when reloading the weapon 

Conclusion:

I actually love this weapons mod and it works better with the Battlefield 3 sound pack for the best experience. Definitely would keep this mod for a long while

Pros:

Replaces Witch with Hatsune Miku
The mod makes the witch quite...cuter than it is 
The dialogue sounds a bit creepy 
Well designed
When being attacked by her, it is the most creepiest thing, ever
You can actually cr0wnd her easier 

Cons:

Model is a bit too large
Hair is a bit too long, sometimes couldn't tell if the hair is attaching to her head

Conclusion:

Overall, an replacement for the witch is very good. Killing Hatsune Miku is a bit...odd. You can actually hear her in a distance. Unfortunately, the witch is VERY EASY to spot with the blue tint due to her large size. This can lead to a small decline of intense tension. Use this mod when you enjoy adding "anime" mods if you like, but this mod is not for everyone.

Pros:

Spectacular design of the entire campaign, particularly the mall itself
Crescendo events are intense
High rate of common infected is everywhere
Radio voice acting is excellent  
It's Dawn of the Dead, Left 4 Dead Edition

Cons:

The 4th level of the campaign (since the 4th map IS the addition to the original Dead Before Dawn Too) is very hard to pass, even with experienced L4D players everywhere
Crescendo events in the 4th level can be frustrating
Finale can be a bit confusing to be on the same path

Conclusion:

This campaign takes inspiration and influence from George Romero's 1978 Dawn of the Dead and especially, the 2004 Dawn of the Dead by Zack Snyder. I seen both versions of the film before playing this campaign. Fighting at the mall is very intense and massively brutal as this campaign is better than Dead Center, of course. The 4th map is very difficult, even on advance mode with veteran L4D players. On expert, well, you should know how brutal it is. It is best played this campaign on normal for the first time since the common infected will appear in very high numbers, regardless of where you go. When you know this campaign very well, you can play on advance mode for the best gaming experience without putting stress. I recommended this campaign to all who love the two versions of the movie or just enjoy killing zombies.

Pros:

Atmosphere is very impressive
Solving puzzles
Teamwork and cooperation
Suspense
This campaign is long. Worth of your time
Some very intense moments 

Cons:

The darkness is too dark
Campaign is confusing in "dark" levels
You may get lost in "dark" levels
Puzzles can be hard. This game is not recommended to those IF you prefer to just "shoot" zombies and not solve puzzles
Playing the campaign in single player is boredom

Conclusion:

Silent Hill is hard to some and cooperation is needed. Solving puzzles can be hard and you need to use your head in order to solve it. The dark atmosphere brings in the suspense. This campaign is best played with all 4 human players and you need to keep your eyes open so you do not get lost. If you like the suspense or Silent Hill, play this campaign.