on Nov. 18, 2015 :
I also have made this experience. I was surprised about the quantity of duplicates on the first sites.
Old questions, many typos and missing words for correct consensus and understanding.
It's a good idea to merge exam questions for other candidates but too much money regarding the quality of this document.
(reviewed the day of purchase)
on Oct. 25, 2015 :
Provides some idea of what the CMS test will look like, though no question in the book came close to a question in the actual test.
A lot of the questions in the book are duplicates, there are a lot of typos and falsely inserted words, at one point the given solution to a question with the answer possibilities A-D is E. The whole document would benefit from a rework.
Overall rating: mediocre, but gives you some confidence.
(reviewed 2 days after purchase)