Typos and bad grammar everywhere. I've read reviews elsewhere that say there are technical inaccuracies (didn't get far enough to verify this myself). I would be disappointed even if the book was free. Look elsewhere for a good book to learn Haskell with, at least until another edition is released.
This book suffers some major flaws. First, I think someone new to Haskell (or not already familiar with a similar language) will really struggle with the pace of the material. So in that regards, its not really a "Beginning" book. Beginners will benefit far more from the book Learn You a Haskell for Great Good. Secondly, there isn't a single page that is without one or more: spelling errors, grammatical errors, or just plain awkward English sentences. This is really distracting, especially in technical books where language needs to be precise. It is obvious that English isn't the author's first language, so I can forgive him. However, the publisher should have put more effort into editing the manuscript before setting it to paper. By the shear quantity of mistakes, I suspect that they never even bothered reading it.