Yea, I like the quiz feature a lot. It feel more efficient than both the podcast one (which mostly creates a very superficial high level talk on a level I typically already grasp), and the flashcard one in my experience.

Oh cool, will look into this. Have only used it to make podcasts in the past. I'm a little hesitant to build in a walled garden though. I'd rather store things in an open format that can be used with many platforms, not just the one.