I paid for Plex, but then they broke the the downloading features from the server to the Android client, and never repaired it to work reliably.

Meanwhile most of their updates were about streaming support, and then they started cramming their streaming service into it, and pushing it, and I just got sick of all of that. Eventually I just switched to jellyfin. It is far from perfect. The music player isn't as good as plex's, there is no download feature. But at least it hasn't turned on me yet.