So I agree with about 80% of the stuff he says - I still watch quite a few of his videos. In fact, I like his diet advice SO much that I parroted it in a thread I made.
His diet and training advice are solid for folks ranging from newbies all the way to advanced, but this advice really starts to fall off when it comes to folks who are reaching or at the far end of muscular development and leanness.
His contributions towards the Stimulus to Fatigue Ratio stuff is top notch and accurately applies to pretty much the whole spectrum of trainees from beginners to elites. If you’re getting bad stimuli and fatiguing the hell out of yourself to do it - I don’t see a good argument to use this/these exercises at ANY point in muscular development.
For most folks, I’d say that following his advice on pretty much everything is a good idea. For those who are very close to, or beyond their natural genetic potential - I think his training and diet stuff starts to not line up as well anymore. Leaving Reps In Reserve (RIR) works fine, up to a point. Following the 1-1.5g/lb BW protein intake works fine, up to a point.
I don’t have an interest in discrediting the dude, because his advice is solid for most who will ever join this forum or stumble onto this thread. But if your FFMI is very near or beyond 30, and you can count all 6 abs without flexing/lighting? You may want to find a different guru.
FWIW, I still have a man crush on Mike Israetel. The Renaissance Diet 2.0 is still my favorite diet book, Renaissance Woman is probably the single most valuable book I could recommend to female athletes, and all the RP cook books are stellar. At the end of the day, he is a youtuber who has to make new content, and all of his biggest contributions are already out there… so he has a slight tendency to twist certain things in his free content to align with his paid content.