Personally I use very little of much of these big features. One that is indispensable to me is Mod-Tap, which allows me to use normal keys as modifier keys. For example, my 'z' key also functions as "Ctrl + Shift" when held down. My Caps lock key functions as "Ctrl + Shift + Cmd + Option" when held down and an Escape key when I tap it.
This actually is a feature now on SmartSet (I believe), but it wasn't always. Kinesis is pretty good about slowly iterating new features out to people in its custom firmware.
Combos is a feature that I'd like to explore more but it doesn't cooperate with mod-tap keys so it'll require some more thought. I've used mouse keys in the past regularly though lately haven't been using it very much.
The broader point is that it at the minimum offers me things that would require me to use something like Karabiner Elements or AutoHotkey to accomplish less well in software on a firmware level. I can change just about anything I want on my keyboard to make it my own without having to be concerned about configuring it on the operating system. It's also just fun!
This actually is a feature now on SmartSet (I believe), but it wasn't always. Kinesis is pretty good about slowly iterating new features out to people in its custom firmware.
Combos is a feature that I'd like to explore more but it doesn't cooperate with mod-tap keys so it'll require some more thought. I've used mouse keys in the past regularly though lately haven't been using it very much.
The broader point is that it at the minimum offers me things that would require me to use something like Karabiner Elements or AutoHotkey to accomplish less well in software on a firmware level. I can change just about anything I want on my keyboard to make it my own without having to be concerned about configuring it on the operating system. It's also just fun!