OneNote is essentially free, it's Microsoft's gateway to get people to come back into their ecosystem and you obviously know it's going to be well maintained, high integrity of storage, etc. I know it will be still around and maintained in 10 years time when I still want to access my old notes.
The mobile and iPad apps are nice, there's also a convenient Evernote to OneNote importer: https://www.onenote.com/import-evernote-to-onenote
My take on Evernote is that they never managed to properly monetize it. I was a single user, not in a team, didn't need shared notes or chat functionality and there was no need for me to pay for it... until they decided to arbitrarily limit the number of devices you could use your account on which is just such a shitty approach because we all know there's no actual cost to servicing three devices vs two. In other words the only thing they could do to get me to pay for it was hobble my UX until I coughed up. Sorry, no thanks.
Honestly, if you just want a solid 1:1 Evernote replacement that isn't markdown, self-hosted, etc just use MS OneNote. It's great.