Just took the MCAT two days ago and here's my 2 cents on it.
Chem/Phys: I felt the section was alright....didn't feel bad about it but didn't feel like I nailed it either. I marked around 12 and then checked up on the answers to the ones I was unsure about when I got home and predicted that missed 2-7. Lots of calculations, but all of them were easy. Definitely know the structures of all your amino acids and understand pI and net charge. Guessing a score of 129-131
CARS: I've always been weak on verbal and it was a nightmare come true. I'm just hoping my performance on the other 3 sections will make up for it. The passages were ridiculously long and the questions were wordier and more nuanced. I can't believe I had 3 minutes to spare afterwards to check my answers. Still I think I did horrible. I marked around 15 and eliminated everything down to two choices. Assuming random guessing, you can get around 50% right or miss 7 or 8 questions, but I give myself a margin and say I miss 10 for a score around 127ish.
Bio: This section was pretty easy. Felt like I nailed it. Even though it was heavy on experiments, I feel my extensive background in basic science research really helped. All the experiments were ones that I've performed myself and knew how to interpret. I marked only a handful and got all of them right after checking. Expecting a perfect score here.
Psych: I walked out feeling meh on it. The section only had 2 or 3 questions with unfamiliar terms....the rest was heavy on graph and data table interpretation. Marked around 15, checked all the answers I was unsure about when I got home and expecting to miss 3-7 on this section for a score of around 129-131.
Overall predicting a score of 515-520 ish. Compared to AAMC practice, the experiments presented were easier, but the exam is still very heavy on critical thinking, nuanced knowledge, and research interpretation overall. For my prep, I used all of the material from a Kaplan online course I took and EK. I would have to say neither resource by itself would have been sufficient on its own. There was some knowledge-based questions that only the Kaplan prep books had, but the EK practice tests were the most similar to the test. For prep, I would recommend reading all the Kaplan and EK books, but only doing the EK practice tests. I averaged 75-86% on EK chem/phys, below 75% on CARS, and 80-86 on bio and psych. If I score well on this exam, I will make a document sheet on exactly how I prepped. In the meantime, I'd love to answer any questions anyone may have.