I use it for exactly what I've always used function keys for- brightness and volume. I also occasionally use the emoji picker or app specific stuff. For exampl

I use it for exactly what I've always used function keys for- brightness and volume. I also occasionally use the emoji picker or app specific stuff. For example- my markdown editor has Touchbar selections for code blocks and all that sort of stuff. I don't write enough markdown to remember everything- so the touchbar makes it nicely discoverable without having to click through menus.