Same for me.
It does about 90%+ of what I'd ever need, it has rock-solid sync across all my devices, I can share notes with my wife without her having to sign up for a service and download an app, etc.
Not to mention that it avoids me onboarding to some unprofitable note taking tool that will languish until it gets stripped for parts.
There was a midtwit meme about productivity hackers vs "I just use apple notes" guys like this too haha.
That's awesome that it syncs that well, though one of the reasons I use it is because I can specifically opt out of the syncing and keep everything offline. I use Notes to jot a lot of things down, and that can mean some very intimate/private thoughts, and I've come to distaste having those thoughts floating in the digital ether. Most note taking apps don't seem to allow you to work entirely offline, and if they do, they still phone home a lot and harass you to sign up for an account.