Using texinfo for works that are not software-related

Hello everyone!

Does texinfo suit other works that are not software-related like sys
admin documentation, lectures, long essays, fictional/non fictional
books? From what I've read in the manual so far, it is possible to
produce some of them but would you recommend it? Chapter 1 states:

> Texinfo was devised specifically for the purpose of writing software
> documentation and manuals. If you want to write a good manual for
> your program, Texinfo has many features which we hope will make your
> job easier. However, Texinfo is not intended to be a general-purpose
> formatting program.

If not, what markup do you prefer for works that are not
software-related, without missing most of the good things texinfo
provides?

Thank you