I took the test on Wednesday, September 23. It was harder than I expected in some areas and easier in others.
This was consistently my best area in practice, from the time I took the official Sample Test right after signing up for the exam, to the Official Guide which I took a week and a half before my test (and got 100%!) to the official question packs for chemistry and physics. I took a year of biochem ending this June, and have been tutoring gen chem and o chem for almost four years, so I felt like I had this section in the bag, just had to work on physics, which I did a lot this summer to strengthen some weak areas.