After OneNote went 100% free, a lot of people including myself ditched whatever note-taking app they were using and flocked over to experience what Microsoft had to offer. Most liked what they saw and never looked back. The best thing about OneNote is that its packed full of features. And while alternatives like Evernote can say the same, only OneNote offers everything for free, and these features are its bread and butter. (Unless youre on the Mac version of OneNote, which needs to catch up.)