General problems that aren't going away soon are the latency between clicking next and the song starting is way too high, especially annoying when you shuffle through a few songs at once. And I've only got 2GB of data a month, so I need to cache locally anyway, killing most of the benefits. The absolute worst thing is that you're tied to the shitty players that cloud-music companies produce.
Some google music specific problems were using tonnes of data even when I'm just playing cached files and things like hitting the next button twice in a row will give random results depending on which web request comes back first. I'm sure it works fine on the google campus though.
For the foreseeable future I'll be sticking with poweramp and music on SD.
I haven't had these problems with downloaded music on the iOS version of Google Play Music.
I thought it had a pretty good player app, but I'm now trying Apple Music for discovering new stuff. The Apple Music app, in my opinion, has worse UX. Good thing I'm just on the free 3-month trial.
Spotify launched in 2008. I signed up for an account in 2009. Since then I have bought physical/downloadable music only a handful of times.
I am an avid podcast listener which occupies a chunk of my phone hard drive most days.
How is this true in any sense?