Seconded. I'm coming from Emacs (+evil), so I'm still missing a few features (proper git integration a-la magit, collaborative editing a-la crdt.el, remote editing a-la tramp). However what is already there works way better/faster/more consistent than any other editor IMHO, and I've tried neovim with plugins too. I particularly enjoy the ability to traverse the AST rather than text (Alt+l/p/o/i by default, but I have it remapped to Alt+h/j/k/l). Really looking forward to https://github.com/helix-editor/helix/pull/8675, I'll probably write a couple plugins if this ever lands.
You can already do so incredibly much by hooking up a few extra LSPs and keybinds (calling external scripts/programs)!
What I'm personally still missing though:
Code Folding
More refined subprocess handling, i.e. term-buffer switching or floating term (when excuting gitui via keybind for example)
Emacs Org-Mode like context aware styling, for i.e. Bold or Italic text hints from LSP
Font changes (restricted through terminal)
Different Font/Line sizes for i.e. headings (restricted through terminal)
Inline images (sixel!)
Dedicated optional client, a-la Neovide with cursor animations (helps orientation with jumps etc.), and to alleviate the previous terminal restrictions