Pros:

-Breathtakingly Gorgeous
-Intriguing
-Multiple Start Points
-Room to Run
-Places to Hold Out

Cons:

-Stupid People Giving Bad Reviews

Conclusion:

100% worth a download. Seriously. Do it. It's not worth meriting a con of any sort, *but*, I would *love* to see a campaign based around this, even if it was just a small campaign spent running from place to place in this map (Highball, to the Alamo, to the roof of the Sub Shop, for instance). Beyond my wanting more, this map is flawless. Yes, there's a few invisible walls to prevent glitching. So what? I highly recommend this map to everyone, and I always force any friend who gets L4D2 to download it. 

-SG

P.S. The sewers *spawn zombies*. Seeing a manhole cover get pushed aside by an undead hand from below is *so god damn cool*.