I was skeptical.. but I really like it! The UI looks very pleasant, and there's an addictive rhythm that keeps you going. As a programmer the beginner courses get tedious for me, I dont need the concept of conditionals explained to me again, but if you had an expert level intro to a language I didnt know- I would definitely want to learn the syntax and idiosyncracies of a new language this way. It feels really painless to learn things in this style.
