It is to me :) (though obviously it depends what kind of user you are and what you're looking for in your OS).

As a 'personal' user (rather than sysadmin), I tried more distributions than I can count before settling on linux mint, both 'beginner friendly' and 'advanced (e.g. Slackware/Gentoo)'. Ever since I've discovered Linux Mint I've not looked at another distribution (except occasionally for 'shits and giggles' in at least a decade. I feel it is very respectful of its userbase and has exactly the right mix of user-friendliness and non-patronisingness that I would expect from an OS project.

Small example from the latest release: ubuntu suddenly decided to only provide its thunderbird package exclusively as a snap, so the mint team assigned a maintainer to preserve a mint-hosted .deb file on their own repo. While ubuntu has been moving to snaps and flatpaks, mint has listened to its user-based and allocated resources to 'undo' stupidities by ubuntu where they occur. And they've been wise enough to maintain a debian-based rolling-release alternative as a contingency.

Having said that, I have been using the XFCE variant exclusively over cinnamon, which I got used to when I had a line-up of severly underpowered laptops for years. So a lot of it is probably also habit by this point.