Downloads don't work as expected. If I set the download quality to Normal but Streaming to High Fidelity (I have hi-fi), once the track is downloaded it will always play at the quality it's downloaded regardless of my streaming quality setting.
So if I've downloaded at Normal, then that track will always play at Normal even if I have an internet connection. The whole point of downloads is as a backup in case I lose internet, but otherwise I'd like the high fidelity quality. My phone doesn't have space to download all my high fidelity tracks.