I got a 3 on the exam with a teacher and a chem program at school which had never had anyone even attempt the AP test. However, this book alone will not get you a 2. This book is excellent when it comes to teaching you how to do the math but horrible when teaching you concepts. The princton review is excellent at teaching you concepts, but horrible at teaching you how to do the math. So my suggestion is you do them together and with your college Chem book. I pretty much taught myself everything and am proudly probably the first student at my school to pass the Chem AP test. I've also been told Barron's is quite good so you could try that as well. So only accompanying princton review could this book be helpful, labs don't really help much unless you actually do them. Don't be mistaken, this book won't tell you how to do the lab specifically, only skims through them.