ATI was helpful for me in school bc it forced me to study. The books were useful for the most part (but sometimes content in one book would contradict itself in another book). On the downside, it isn't a very good predictor of how people do in the course. Also, I don't feel results reflect how much time a student spends studying content (ie someone could not study and pass with a percentile that is higher than someone who studies the book for months). On that note, Virtual ATI will be a waste if you don't like ATI. Its the same tests, but different questions. The online instructors dont always answer and they give you study guides that are too specific and nitpicky.