I bought an Ultimate Hacking Keyboard and I absolutely love it. It has solved my primary complaint of feeling tired at the end of the day, and have been loving the custom key commands that can be sent depending on the layer of the keyboard.

Certain shortcuts for things like managing windows are now behind Fn + a key vs Ctrl + Option + Cmd + key.

While traveling I miss my keyboard, but because its not ortholinear at least it retains similar key position so switching to a different keyboard hasn't caused too many issues.