Demo magic is a good tool. I used it for recording a video course. But here's one minor caveat: there's no hint for what command will be executed next. Sometimes I would start talking about a subject, then hit ENTER to auto-type the next command, only to find that my words were off topic from the current command. My fault, but it was always a pain to recover from.

I still recommend demo magic. But use it with eyes open if you're mistake-prone like me.