Well, had my first run through and have to admit, I like it. Not that it was ever in any doubt
As ever, the levels have that kind of finish to them which is remarkably rare in a custom campaign - being an amateur mapper, you really notice that kind of thing. You can tell this was done by professionals. It's so difficult to give a level a "lived-in feeling".
Loving the new weapons. I'm a big shotgun fan, so the changes to the basic shotgun were a pleasant surprise. It's just meatier - that's the only word I can use to describe it. Melee weapons are...well, I'm not an in your face kinda hacker/slasher so it might take a while for me to full appreciate them. Running out of ammo with your main weapon and only having a machete left is a bit of a pickle when you're faced with a boomer.
The new bad guys are gonna be such a pain in the ass. Versus will be a whole new world of torture for the survivors - although boomer bile will make for some amusing moments as survivors.
The three weeks until release are going to be three very long weeks indeed.