RE: One Week to Solo video
Sims can teach you to fly without crashing, but only a quality instructor can teach you to fly well. Some hope to improve with practice, while those who do best anticipate how to improve when they practice. (1st U.S. R/C Flight School had only trained a few hundred students when One Week to Solo was put together. The School has since trained over 1000 students, and the more recent manuals reflect the advances made.)
David
Those who don't know what they don't know can claim to be content with where they are, but flying is surely more fun when seeing steady progress.