Just picked it up and so far I like it.
If you are a 'collector' this is definately a must buy as it rounds out all of your decks and options nicely.. It has a little bit of everything in it: new conditions, new wound (fade to black--i like the mechanic), new corruption and mutations (a bunch here actually), new insanities (3-4), new party sheets (2 or 3), 2 new careers (duh!), Hedge Magic (with approprate action cards), New Creatures (full card layouts like Creature Vault) with appropriate action Cards, 7 new location cards with some cool effects (mist and quagmire for example), new talents (3 or 4, 1 of which is Witchcraft), new Item cards (blessed shot, explosive barrels, cursed knife)...goodies galore!
Ok, now onto the adventure part--the above was just the add-on stuff. I haven't had a chance to read the entire adventure but it does look a bit shorter than the others (gathering storm atleast) but the components that come with it are top notch. Handouts, Faction sheets, NPC cards etc Adventure looks well laid out and some solid mechanics for tracking stuff.
Off to reading...