The only downside with this DLC, is how mr. Baha is missed easy.
And there's a lot of running in this one but great fun training for headshots. :)
I like the different Zombies, and if you play this DLC early during the main quest, you will have a challenge. If you're a Corrisive element fan, you might want to consider other elements.
The big thumbs up, is the humouristic references, I'll mention only 2 things: T.K. Baha and Zed with a moustache (dr. Ned).
I was somehow dissapoointed with much of the loot though, a DLC should have more extraordinary weapons, but then again, I got a very nice revolver.