If you know how to use this system then you will never, ever, need to use GFs a single time, even Ifrit can be killed in seconds just by attacking with Squall and throwing Blizzard spells with Quistis.
In fact the hardest part of that boss fight is to time it so you get exactly 0:07 seconds or less when you finish it if you are aiming for a perfect SeeD report.

The Draw system is also rather ridiculous - but fun!
I love when the enemies have spells like Haste, Regen and Triple so I can buff my characters for free.