Healer's word: pressing 1-2-3 is much more fun than 1-1-1.

It is indeed difficult to explain, because there is nothing complicated about a 1-2-3 combo. But it still adds a variety that you don't realize until it's gone.

I've seen a few comments come through complaining about their current lack of a button. Are you sure you've optimized your bars and shortcuts properly? On most jobs, I still have a few empty slots.