Conceptually it sits between Apple Notes and Notion. You get native apps that work offline, support fast capture, and are satisfying to use. You also get the wiki-style support and block-level editing of Notion, along with lots of other nice Notion visual flourishes (page-level icons, cover images, etc.)
One area Craft really shines, is the way that it supports interactive, sharable documents. If I have text, images, files, and want to combine them all into a single page/starting point, Craft makes this super simple.
Here are some examples (which you could design on your own):
https://www.craft.do/s/VIAC9BTTJWdCxp
https://www.craft.do/s/09fqwC5rGqErmB/b/F19F87F2-0F04-49F9-9...
https://www.craft.do/s/09fqwC5rGqErmB/b/9041969E-127C-4439-A...