Improved use of background noise, stellar voice acting and combat sounds.
I appreciated how the background noise contextual changes based on the environment and the sound effects turn otherwise plain descriptions into breath-catching experiences.
That said, the one detraction I noticed was that there were 1-2 occasions where Fizzy's actions had clear sound cues defined, but we didn't hear anything despite being in the cinematic audio. The net result was that I didn't really imagine the additional sound being described, as I was already engaged with the sounds I was actually hearing.