First impressions of LNOE: Survival of the Fittest

My copy of the latest Last Night on Earth expansion, Survival of the Fittest, arrived last week. It's a smallish box, but it's crammed with a good amount of stuff; 4 scenarios, 5 counter sheets, 3 new decks of cards and about 8 each of new Hero and Zombie cards. I've only glanced through the rules and scenarios, but so far, I really like what I'm seeing and I'm looking forward to trying these scenarios out with the new stuff.