I exclusively use Protube now as well, deleted YouTube. No ads, there's PIP, background audio, it lets you adjust the quality over cellular network, set a default playback quality, etc etc. I also prefer the design, the new UI for lollipop is awful imo, I like the look of lollipop in general, but hate that giant neon header that never goes away and I'm not a fan of the subscription lists. I only used it a couple times, though. Should've gave it more of a chance but PiP is way too enticing. Gonna miss the 60FPS support in YouTube but not that many people use it. Just looks nice for the occasional time it comes up. Is that something Protube can add in?