I think the only reason people don't really use the macros is the extra delay they add. which is really annoying but i use them differently.

I have might set to follow through with commands so it changes each time the button is clicked.
Not one i use but a basic example: Spinning Edge > Gust Slash > Duality > Aeolian Edge

So that way i can have a full combo set to one key rather than having my keyboard swamped.