I would say this is a good supplemental app information for the actual proctored ati. I did these during boring lectures and saw a couple of pattern like questions on actual exams. The questions here are easier than the computer one and frankly some of them are stupid but ati is somewhat stupid to begin with. Would I buy it again for the money; yea probably only because my school wanted us to have a certain percentage and I wanted lots and lots of questions. Is it worth the money? I think it should be cheaper or at least come with the ati package of student is buying it!!!!