I think the UI should be the next big thing in the next update. Poweramp isnt the best looking player on the market, at least not without skins, im sure most will agree. Many other players have adopted full material design interfaces out of the box and they look stunning and clean. The audio quality in the latest alpha build is stellar enough and the visualisations are beautiful, although I don't use it
Snapdragon 24-bit PCM working fine here all the way up to 24/192 on my OnePlus 2 running unofficial CM13 build.