I started learning stenography few years ago, though I didn't go through it to
the end.
Similarly to you, I like to take handwritten notes, especially that some
meetings are convened impromptu and getting a laptop takes much more time than
taking a pen and notebook.
I don't take part in meetings often enough to warrant that much effort, so
stenography would be merely a patry trick for me, so I gave up. But I clearly
saw the potential with my own eyes (few weeks in and I could write at one
fourth of my normal speed with what was a completely foreign alphabet
initially), and from what I've read, a proficient stenographer could write
up to four times as fast as one can speak.
Given all this, if you have enough energy to learn and you note often enough,
I would say go for it.