SUPER amazing patch for me.
Coming from Australia, with really terrible internet, it's made my gameplay a lot more enjoyable. Funnels send out at a super fast speed compared to before. Damage is taken quicker - means that vulcans and machine cannons don't take awhile to register. Mode changing is smoother and faster. Melee speed and shooting speed and just fluidity of the mobile suit feels a lot less "delayed" too. Utilising SP comes out instantly instead of just waiting a good few seconds (and getting cancelled and raped in the process ahaha)
I know that most of the above won't mean much to those who already had decent / good connections, but I just want to say that this was the standout for me.
The new gameplay and UI changes and everything - I think has been covered in this thread and the KR patch already.
Now to look for more people to play with
IGN - TrueHarmony