I have noticed several errors in my copy. Of course that is to be expected since it is just the proof copy. Mostly page numbers, but there where a few things that might need re-writing.
One thing that confused me was the Opposed Skill Rolls. There is the default method, then there are several optional methods. The first optional method seems to be identical to the default method. Unless I missed something? Or maybe it just needs to be clarified?
Anyway, in general I am very happy with the book. I will be buying the finished version as soon as it comes out. I am pretty confident that they will have almost all of the errors sorted out by then.