Yep, I do use fossil on my PC as well.

Advantages I see as compared to git/Hg:

• integrated wiki and ticket system (although a bit rudimentary)
• repository can be outside of the source tree, so an "accidental" rm -r doesn't kill the repo, even if it was not distributd…
• repository is a single file, distribution not only via push/pull/etc., but also via simple copying of one file

(for the OP probably only the first point is of importance)