We have a player specific buffer system now!! It's awesome.
For those who are confused what a buffer system is, let me explain. In original Brawl, we have a buffer system of 10. Have you ever noticed that when you mash a button, the character does some things you don't want to do? Or maybe, accidental deaths because you got pushed of the stage but your character performed an action that delayed your upB?
It's the effect of the buffer system. It basically delays your input. For example, try short hopping with Falco. Mash the B button until you land. Normally, you'd get a double laser short hop, but because you mashed it, you get a third one coming out the moment you land even if you didn't press B upon landing.
But now, we have it play specific. So any person can play with which ever preference is preferred. I'm more of a technical and precise person, so I love the lowest buffer available. I'd play with buffer 0 to 2. Low buffers make things harder to do such as Bowser's Claw Hop, Falco's instant Aerial Phantism, Mario's short hop double uAir, and Marth's short hop double fAir. Those are all examples of what lower buff system affects. But hey, you get better practice and timing. Your control is much more tight, but your character is much more accurate.
Either way, this is beneficial for everyone. Including new comers. Hope you enjoy this new buffer system by the Brawl+ team.