I like how he accurately demonstrates all the manual of arms and evolutions and maneuvers from the British drill and musketry manuals. It's much more interesting than squarebashing.
The only video of his I thought was not a very good demonstration and rather misleading was a timed trial comparing the sustained rate of fire of clip-fed Mauser action against singly-loaded Lee-Metford action, to disprove the Boer War conclusion that clip-loading rifles could maintain a better rate of fire. I remember he fumbled some of the Mauser reloads and was super tryhard on the Lee-Metford reloads, on top of capping the trial at a rather low number of rounds per rifle (maybe 15 or 20) and he came to the erroneous conclusion that there was no appreciable difference between the reloading systems.