Pros:

-More Challenging
-No hit invulnrability on survivors

Cons:

-The Agro range on the Witch seems a little too large (Can be startled from across a street without gunfire)
-Tanks? May just be me but they seem really beefy sometimes almost impossible to kill, and other times really weak

Conclusion:

Despite the Cons I thouroughly enjoy playing with this mod, coupled with FFHRRM Mod. I am wondering if there is a Health randomizer on Tanks, because I'm certain the tank I faced earlier was much more tanky than the ones before. Also maybe lower the agro range of Witches a little? Just my opinion but it seems a little unfair for the likes of Expert when you don't get past very many witches without startling them. Besides that it's well worth a download!