It is/was based on Debian's testing branch - so not as bleeding edge as sid/unstable, but more so than stable branch. I'm not sure how that compares to Ubuntu, but I do prefer a working system.
I mainly want Debian + working hardware on a Live pendrive, and don't trust Canonical, so that seemed the best option - but after discovering the response to a website hack in 2016, I'm unsure about trusting Mint either.
Hoping I can find another derivative that bundles drivers and not have to arse around putting one together.