Incredibly easy to use. I've always been hesitant to make videos of my process because I have a tendency to get distracted, which means I'd need to edit out tons of empty bits where I'm not drawing. This tool solves that issue perfectly.
It's also a huge plus that this saves it as images rather than an actual recording, so I can zoom in and out as much as I want without making the final time-lapse jarring to look at!