I mastered most of the more commonly known motions, including most of the ones on this page (http://yannesposito.com/Scratch/en/blog/Learn-Vim-Progressiv...) and some that aren't on it. It didn't seem to be delivering the promised efficiency improvements, so now I only use it for git commit messages, line editing in zsh, and file processing with macros (which are pretty nice--best way I know of to reformat data; much easier than writing a script). I don't think it was worth it--should have shipped product instead and used nano for my command line editing needs.