The material is great. Deff need more than a 1-over, but overall it was great. If you go through it 2 or 3 times, with the solutions it is very helpful for almost all sections. Orgo and Gchem were a bit much with orgoman, but hey, if you could do those you should be set. even if you can't do them at first, but COMPLETELY understand his solutions, you should be golden. . . a friend of mine used it and got a 23 in bio, 24 chem, and 26 ochem.😀