...It's similar to the "show don't tell" principle. Maybe this can be optional, because I can think of cases where both can be useful.

2) Option to choose the length of the summary. I usually want something more comprehensive.

I also like their chapter summary feature. It's very handy. I have two suggestions to make this better.

1) The summary to be less about telling me what I'm going to learn (I don't want a table of contents) and more about summarizing the concepts...

It depends on when it/he was cloned and what it/he has done since then.

Sounds great!
We loved our time there. I'd be happy to help as best as I can if you happen to have questions. Feel free to DM me.

Cafebrebría, in Mexico City. I think they have 4-5 different locations. I was at this one: maps.app.goo.gl/qxhQifdruUKh...