Pretty much the reaction everyone has when they actually play it. So many naysayers on forums saying it didn’t sound different on clips and the II was already so good, how much better could it get, but then it’s like you plug in and play the thing thing and it’s like bam!, “my guitar has never sounded this good”. Not just best modeler tone, but best tone of any gear period. The clarity, the detail, the note separation, the dynamics, the lushness of the reverb, it’s all just exceptional.
As for release notes, can’t help you as the rest of us are still in 1.10, which is the latest released as far as I’m aware, though sounds like maybe 1.11 will be dropping “soon”