These guys know what they're doing... and talking about. I love how their content is backed by the latest research, not just about exercise science, but also about how mentally to stick with a program and get the most out of it. The "Ponder" element of the programs is an important missing component in a lot of other training programs. These guys recognize the psychology behind how to stick with new habits and gain a sense of progress. I also love the way they "resist" perfectionism and reinforce gradual progress. They do a great job of offering modifications if you need them, but also challenges with movements.