(Leaflet cofounder here) - thank you, really nice to hear! It's taken us a long time and several prior products/prototypes to arrive at this, including previous attempts where we had similar aims — make nice expressive spaces for collaboration, creative work, learning — but took very different (and more complicated) directions, e.g. a multi-room chat/note hybrid app with each project as its own database, or a global wiki with live calls built in.

I think Leaflet's by far the most easy to use but also hides a lot of power and expressive potential without being overwhelming, and we're seeing more traction and cool ways people are using, so happy with it so far! In particular finding it really cool how there's a lot of space between very simple notes/docs and rich publishing that gets closer to artifacts more like whole websites but with document-like form factor. And making something that's equally nice and simple to read and to edit/collaborate on with others…a good challenge and design space to explore!