Very. Several thousand lines of elisp org-mode customization. Much coloring and styles, custom tags, but also a few thousand lines of extended functionality.OrgMode is flexible but its strength -- customization -- is also its weakness. How familiar were you with OrgMode and what about it didn't work for you?
I love org-mode (and emacs), and in a text-only world Linux/Windows I would use just those. Emacs user since the 1980s.
a) I depend on being able to save screen snips into my log, and never found a good way to do that in emacs. Found scripts that would save clipboard image to a file, and paste a file: link - but this breaks when org-mode items are moved to a different directory. Never managed to get all the hooks needed to move the image object, and/or rewrite the links. Really want the .org file to be in a tar archive, with images in same tar archive - archives are just folders that you can use file based
b) I know of no good way to use org-mode on a phone. I tried https://orgmode.org/manual/MobileOrg.html . I even tried running emacs on my (then) Android phone. Neither worked well.
c) when I switched from org-mode to OneNote, I got the nice feature of OCR / text search within tge bitmap images. Not available in emacs/org-mode, as far as I know.
d) now, I want to start using my watch for capture. Using Apple's Reminders app, or Just Press Record.