Anki is a good way to preserve progress made, and even make enormous amount of progress(in the medium and long term), but I don't think it was going to be a complete solution all by itself.
I am afraid I have to disagree. The very act of creating Anki cards or any flashcards, for that matter, is unparalleled for learning new material. I would consider it similar to the Feynman method in that it forces you to dive deeper into what you do not understand.