A few more points of feedback:
My main issue with uploading files is that I get an error message (even with a doc of 1,098 character) or the file is too large. An 18-slide PPT file is too large. But it did work with two uploaded Word documents.
For the first doc, it generated standard comprehension questions. Why do all questions start with “according to the information?” (See screenshot.) I’m going to have to edit all of them.
For the second one, I asked it to write questions about tone, audience, genre, and structure/organization of the text. It did a pretty good job! I have to edit it, but it’s a great foundation to work from.