There were a few rough edges for me with the block-based editing. I chocked it up to me never having used a block-based editor with any frequency.

I stay away from some of the AI features:

- One feature generates additional context for a flashcard as you practice. This burned up my AI credits like crazy and added nothing but distraction to my practice. - Another AI feature for PDF summarizing just didn't work. It made a claim immediately and clearly contradicted by text in the exact area I was highlighting.

The cases where it works, I absolutely love.