Dear FFG
I'm very happy with my purchase of the Creature Vault and would say that it is a MUST BUY for GM's. However, there's a couple of issues that have cropped up - not complaints - that I thought I'd raise:
An Observation - The range of monsters and bad guys is excellent, however it struck me as odd that the ubiquitous Giant Rat has been overlooked. I know that there is the Rat Swarm, but it's just not the same. It just seems odd that this staple WFRP beastie has missed the cut. Also no Ogres...curious...
A Question - Is it possible to get a PDF of Creature Cards and Action Cards for the NPC's from the demo adventures on the support page? Klaus von Rothstein, Farail Trefoil, Rudi Zalt, Gnashrukk and Barnock Duran are all immensely reuseable NPC's (even just as exemplars) and their actions would add social angles to the NPC action cards. I know I can print off the PDF sheets, but I like the Card format.
A Plea - Enough with the Rat Ogre and Troll stand-ups! Seriously, I've now got four trolls and four (or is it five) Rat Ogres. That's enough for anybody's purposes. Please use space on the stand-up/counter boards for something else in the future. 
Other than that - it's an excellent product! 