I was apprehensive of OneNote at first (still am a little). But then I started using it. I don't like it as an everyday "To Do" list. I prefer
TinyDo for that. I actually switch between
Clear List and
Due because all of them look so neat and I can't decide on just one. But I digress...
The only time I've used OneNote as a ToDo list is when it's part of something bigger. For example. I'm getting things around to take my Professional Engineers license. I have letters to send, forms to fill out, transcripts to get, etc. But I've also saved some web links, articles, and calculator ideas. I didn't want to go into TinyDo and make a separate list - so that's why I have it in OneNote. The reason I don't like the list feature is because the check boxes are rather small and if you don't hit it just right (especially if you don't have tiny fingers) then you end up editing the list instead of checking that item off.
For other things, it's been great. I just did an airbrushing job and I used it to save some images, make some notes on ideas; and on my laptop, I even was able to sketch things. Same with ideas for my garage. So for what I call "more in-depth" things, I like OneNote. However, for a simple ToDo list, not so much.
I do agree it needs some changes. Like, why in the world do they not allow you to save directly from Internet Explorer!?!? And if you can make sketches on Windows 8, why can't you make sketches in OneNote on Windows Phone 8?
But I would say keep using it. It's actually growing on me. And if I ever decide to leave WP8, at least I can still get the app for Android or iOS.