Agenda (custom search expressions and aggregation for all kinds of notes), capture buffers (quickly take notes while doing something else), time tracking, colum

Agenda (custom search expressions and aggregation for all kinds of notes), capture buffers (quickly take notes while doing something else), time tracking, column mode (hierarchically sum up time spent and other properties), easily link items to files, even emails or RSS entries, tags, solid latex-export (you can just \textem{mix latex markup in like that}, I don't even write Latex anymore), org-babel, which is kinda like Jupyter, but for everything, including R, Python, etc. in-line image support (works with Latex, so you can have in-line formulas in your latex documents. This is surprisingly useful if you take math-y notes), org-ref which is like bibtex, but for org, and sane, so you can easily manage citations and sources … seriously. The list is so long. That's just off the top of my head. Granted, some of this is more useful in academia, but depending on how much research you do, it can come in handy at any time.