As always, different strokes for different folks.

I find Curio about as fast as One Note, if I'm using it similar to how I would use One Note. For instance, for a One Note-like experience, don't add idea spaces, add RTF files.

To me, it's like Tinderbox made easy to use - but I'm not a Tinderbox user, so I may not have an accurate or fair view of what Tinderbox does.