Back when the RKC was a big thing, he was the guy in the organization with actual academic backing in exercise science who is also not fat.
He wrote two Dragondoor books, both of which were pretty solid, one for improving your kettlebell military press, and one for using snatching for energy system training. Both were good, but pretty short and you were paying the Dragon Door tax for short books, as well as the ridiculous marketing, hence why it became "Viking Warrior Conditioning" instead of just "The VO2 max snatch protocol". VWC was a pretty decent set of programs that would let you train and peak each energy system with fairly light snatches, and decent scientific explanations.
The no bench thing is probably because the RKC were real big into overhead pressing over bench.
He's since left the RKC before everyone else did, and gotten into a lot of neurological approach to rehab stuff, and broadening his approach to conditioning. I haven't looked at any of his Movementcode stuff, because at this point I don't spend a lot of time learning about kettlebells from anyone not actively competing in GS(and winning).
I've made a single pass over the cardiocode, and the the physiolgy review is pretty good, but there are some issues with the book.
-I'm pretty sure he wrote and edited it himself. The layout and focus suffer in terms of readability
-the physiology vastly outstrips the actual "building a plan" parts
-the planning sections focus almost completely on Vo2 max and peak anerobic power, so if you're an endurance athlete there are some pieces of the training puzzle he doesn't directly address
-no real breakdown of annual planning or intergrating this into an existing training schedule, unlike in VWC where both of these things were directly addressed, including a case study with a client.
