yeah, similiar experience. I've got a play 3 and the think it's quite a pain. I would never buy a sonos or recommend it to anyone, it's a poorly supported walled garden which only introduces features to the newer speakers and is not even working that well.
I'm in the same camp as you. I love Spotify and have 0 interest in amassing and maintaining my own music collection any more. Ever since they added the ability to play directly from the Spotify app to Sonos I couldn't be happier.