This has reliably synced the notes from Notability on my iPad to my Mac, where I reference them sometimes. This excells at typed only notes, drag and drop PDFs, and some organization. I am not reviewing this as a stand alone application- but rather as completing digital only note taking. Without it notes were (this wansn’t always here) only on my iPad, for the benifit it provides if you use Notability on iOS is easily worth the purchase price.
SpecialKen about Notability, v1.6.1