All of their chapters(not passages) are pretty detailed. This is coming from someone who has followed SN2's schedule to a T(on day 87 right now, - the Hat Trick, I just review). Please let me explain.
Organic Chemistry: As stated already, if you've had a solid understanding of organic chemistry from your lectures and labs, there is absolutely no reason to go through TBR chapters in detail. I did find the last chapter(Organic Laboratory Techniques) to be great though, it really refreshed my memory on the concepts behind what I did in lab. Maybe EK? I wouldn't know.
General Chemistry: It's very thorough but hits the concepts hard. I would recommend it if you have the time, but otherwise EK should be okay.
Physics(passages): Ridiculously difficult. It completely destroyed my confidence in physics to the point where I gave up and bought NOVA and just did the passages from TBR. I have been consistently scoring 10-11s on AAMC PS and missing 3-5 questions at MOST from the physics, which just goes to show you how unnecessarily difficult the passages are. I always understood TBR chapters but got killed on the 25 review questions and passages afterwards.
Please don't get me wrong, the chapters are really concerned with a conceptual(but detailed) understanding of the various subjects and offer many memorable mneumonics for all topics. But as many on this forum believe, the passages are where it's at. The TBR passages are there to prepare you for those 1-2 OMGWTFBBQ passages on the real deal. I have yet to be intimidated by a FL passage(done 3-9) because TBR passages make the tough ones seem easy.
It is to my understanding that we are ultimately responsible for only the material covered on the topic lists. Thus, you may want to start from that and study the corresponding information in TBR. Good luck!