The story line is rather entertaining, and much more fleshed out than the original. There is spoken dialogue for just about every character and the sound effects are great.
I could go into more detail but seeing as I am the first one to post here about it I thought I would only enpart upon you two pieces of advice.
1) Do not play this game solo, you will be snuck up on....regularly.
2) Aim for the head.
Trust me on this!
[Edited by TalonKarde, 12/12/2009 9:01:32 AM]
The graphics in this expansion are more demanding than Borderlands (judging by using fraps its 14% more demanding for me on 4870 CF), so unless you invested in a good graphics card with plenty of VRAM, you are going to need to turn most the settings down. There are bigger draw distances and more details in the gameworld.
I played this solo during the final mission to living things up and it was quite easy as most move slow, even the bosses weren't too difficult to take down with a little cover (this is on my first play-through).
Using the '10110 Canon' you can take down most zombies first time or use the 'Pearl Havoc Rifle' with 12.5 firerate to kill most enemies. And be sure to keep looking around you as zombies pop up behind you and start nibbling on your head!
Yep, it says on the Zombie Island of Dr. Ned page on Steam that the DLC requires Steam version of Borderlands.
[Edited by Foxxie-kun, 12/26/2009 10:29:49 AM]