Only one real problem with this text is that the text is semi-visible through the backs of the pages. I am not sure if this is a problem only with the paperback version, but you get accustomed to it and stop noticing after reading for a while. Overall, though, the paperback version is great and I would definitely recommend it over the hardback due to its lower price.
As for the book itself, it is clear the authors tried to be unbiased, but they are too conservative for my taste, which, in my opinion, detracted from their analysis of health care, social security, and other topics discussed in the book. The analyses in the book are good overall, though, and the book is very accessible.