I finally got fed up with Evernote's increasingly aggressive paid upgrade requests. It would flash an "upgrade special" every time it opened and a followup, "Are you sure? You won't be able to get back to this offer". Like, please, let me not get back to the offer ever again.

I have been using Joplin with Dropbox sync. The UI is pretty good on Android and windows. Markdown input is easy to manage, it does checklists well (you can check and uncheck the boxes without going in to edit the note). The folder structure for organizing notes is good.

Not being able to share notes with other users is the main limitation. My wife and I have solved this by syncing with one dropbox account on with phones and computers and just having a folder for each or our personal notes plus the shared notes. But really it is all shared. I don't consider this ideal, but it's workable for now.

The dropbox sync is kind of slow / not very good if multiple people are making edits in real time, but I had this problem with Evernote too.

I think you can get more functionality out of the Joplin cloud sync, but I am already paying for Dropbox.