The moment I switched from Evernote to Onenote was the time EN screwed up the formatting of one of my very important ornate lists. To make things worse, through an unlucky combination of keystrokes I deleted everything I had in my note, only to find that version control was a Premium feature of Evernote.

I promptly used the free "Recommend to a friend" 1 month trial to recover my note and used the importer to move everything to OneNote and I haven't looked back since.