Hi! I personally did not use any chem GRE prep books out in the market. I took all the required chemistry courses prior to taking my GRE so I had my textbooks to review from. Unfortunately, I didn't get to review analytical chem so I completely blanked out for questions regarding which instruments to use for particular problem.
I used my textbook (i literally forgot the author's name) for organic. Just go through all the reactions, go over the mechanisms, practice, practice and practice.
PChem, I used both my textbook (mcquarrie) and this youtube channel called TMPChem. Since I've been working at a computational organic research lab, I am quite well-versed in QM and kinetics. Thermo and I still aren't cool even after pchem and studying for the GRE, but I know enough to read physical chem literature.
Inorganic chem, I used Miessler. Studied all the periodic trends, group theory/symmetry, organometallic reactions, and bunch of stuff like jahn-teller effect, crystal field, ligand field, solid state chemistry (superconductors, doping, etc).
And for the analytical chemistry, I just prayed and cried a bit since I literally ran out of time to study for the material. I had two months to study, but I was also working a lot. Not a good excuse, so it is what it is.
The biochem questions on my exam, surprisingly, were easy. I didn't study for biochem at all as well, so I got very lucky.
In the end, I did fine