I don't know how people can read Secrets twice and do well on Step 2. There is a lot of information missing from it. Just from memory, this is what I remember missing from it
1. Testicular Cancer - breaking down the different types and lab values
2. Breast cancer - breaking down the different types, pathology and Dx and Tx of each
3. Opthalmology - weak in general
4. OB/GYN - failed to cover what to do about management regarding ectopic pregnancy and beta HCG levels (knowing what levels are high enough to visualizing it on ultrasound versus doing a laprascopy) and was just weak in general
5. EKG's were terrible and not well visualized. Plus, it doesn't go into management of each type arrythmia and how to distinguish between different infarcts
There is a lot more I could include but I think you get the point.The only true complete and comprehensive texts are the Kaplan books but they take a while to go through but they truly are thorough. This is why I think USMLEWorld should be used. It's comprehensive for USMLE Step 2 (don't think it's a good source for COMLEX)
Don't get me wrong, I think Secrets is a great book but unless you have an extremely solid foundation and remember everything you read all year. I wouldn't expect to read Secrets twice and get a 227. This book should be part of your study but USMLEWORLD is a much better source and should be the primary source of your study for Step2