I'm impressed with 9.2 so far. First of all, it DOES take away a large chunk of the lag on my iPhone 6 Plus.
More importantly, though, it solves one of my main issues with Apple Music: when you listened to - let's say, Zane Lowe's replay - you would get his audio like a podcast but you would not be able to add individual tracks to toe favorites or playlists. You'd have to find that same song in another part of he app and manually a de that to your playlists. During he course of the day that was not feasible. Now when we listen to the replay we actually have each song being individually shown to us. So now I'm finally able to follow Zane Lowe's programme (I work when it's being aired live). I'm quite surprised at how many bugs Apple has squeezed on Apple Music alone with this update. It's now a mature product for me. Not nearly as frustrating as it was before. I'm actually satisfied with it.