Passed Security+ with help from Darril Gibson's book.
I passed this cert on December 30th. The book was a very easy read and well done. It was my only prep for the test which likely was not the best plan. I passed with an 801and my guess until the end was I failed it. I had 5 simulation questions I was not expecting at all. And, I am sure I got parts of all 5 wrong. I also felt some of the material wasn't in the book. Bottom line if I was doing it over again I would use the same book but do additional work.