I didn't buy this (as a student) until I had a student recently say to me "what are the signs of (some obscure disease, can't remember)?" I said "I have no clue, what are they" and she/he was in shock that I, an ER nurse had no clue. Once she told me I remembered and tried explaining that (a) I don't learn by rote memorization, if I saw it I'd remember it and (b) a patient will not always present the way the book says, you have to look at the whole picture. Needless to say, said student kept asking questions over and over- ugh. That's nothing like being in the moment.
Posting from my phone, ease forgive my fat thumbs! :)