I think his videos are more often than not akin to "feel good entertainment". Nice variety of expensive devices coming in, obvious symptoms (ripped connector, pulled traces) or simple diagnosis (shorted mosfet vs. thermal cam is almost like a cheat code!), clean soldering work, usually with a compatible donor in the shop to grab the replacement component from, and a steep profit margin. Throw in some no-fix videos every now and then to remain genuine. It's a great formula and I enjoy most of his videos.
The lengthier failed repair videos do set him apart from e.g. Rossman (and many others these days). If it wasn't the first mosfet, find another one that's bad. Try something similar elsewhere on the board. Then if that doesn't work, decide that the time vs. profit scale is sliding and we have to call it quits. I can't recall seeing him open a schematic diagram or trace out a circuit, so the depth of his investigation is not quite satisfying. I'm inclined to agree though that from a business aspect, he's making the right decisions. With the piles of devices arriving for him, it's a no-brainer to move on to the next repair with a missing HDMI port and 95% chance of success/pay than to sink another minute into a 50/50 repair.
Another aspect of his videos that I really like is his smart use of (often new) tools. Stuff like holding the soldering braid with SMT tweezers for enourmous heat transfer, or the review of 15 different PCB holders and selecting a definite winner which is then offered in his shop. I've bought a ton in pursuit of the perfect tweezers, and have strolled aliexpress for useful repair tools for ages. But nowadays, if he says something's good, I'm inclined to trust him and am likely to grab it from his shop along with the next amtech flux order I put in
Oh, and he really needs to properly solder ground pads on large connectors if he wants to claim better than factory!!