Congrats on the launch, I love TipTap!
I reviewed a bunch of editing libraries before picking TipTap to build
https://duckbook.ai
Things I love: nice high-level interfaces to customize behavior, can write my own plugins, interactive node views are powerful, and it's built on ProseMirror (so you can pop the hood to a lower level if needed).
Overall, I've been really happy with the choice, and building a slick Notion-like editor product has been fun :)