It is completely different. Gatlings are gone outside of universal ones, the game has a much heavier feel more grounded around dominating neutral, damage is HUGE and the juggle system they have in place feels more as if you were playing something along the lines of MK or something. Never mind the whole wallbreak system where the neutral is reset after every break and you need to gamble on whether it's worth it for the Positive Bonus or mix them a little more while you have them in the corner.
It's a big departure from what GG used to be, but in a way it's a pretty refreshing take, albeit not for everyone.
Think of it like Real Bout Guilty Gear and suddenly everything makes a lot more sense.
Personally I like it a lot, despite liking #Reload/Slash and Xrd a whole lot more.
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