Err, I just dont get where people come up with the idea that "harder the better" Here is my thought for TBR Biology's.
Flaws:
1. Alot of questions are subjects from other sections (physics, chem, ochem, other sections of biology). So if you are using this for contents review first time you are fked.
2. Some question are worded a little awkwardly, but so does every other company.
3. Some of questions expect you to know some background knowledge that you dont even supposed to know. And the worst part about it is they dont even cover that in their book (like eye/ear anatomy). I literally was wondering if i am missing a section of the book. However some of them can be answered with the passage of course, but the passage is so dense from all the volcabs that you are unfamilar with you have to read like 6 times. I think for people without more experience in some practice MCAT it skew's their proception of what real MCAT is testing.
4. Curve is totally bs.
Over all impression.
If you only have 1 month left before your test. I would just say forget about TBR, way too time consumming. I did learn quiet a bit however I none of which is required knowledge by AAMC you would do alot better if you reinforce your basics. Did AAMC 10 yesterday I got 13 for bio easily (with like 30 minutes left to the timer). I missed 4 questions NONE of them is because I didnt know some facts.