I'm new to Spotify (a whole 4 hours now!) and I'm already having constant crashes.
I've seen other users with complaints that the discover page makes the app crash. Mine does too, and it's reproducible. There's a GAP ad banner at the top with a video that plays. When the video ends, Spotify crashes. I've done it ten times in a row now. On a different page everything is fine for me.
I don't know how that might be affecting premium users, though. Perhaps there's failsafe code not working and it's letting through more things than just a bad ad.
Edit to add:
It's not just the GAP ad. There's a Samsung Galaxy ad that crashes Spotify when it's done and there's others that do it too.