Coming from Rdio, I'm genuinely curious where you find the social experience in Spotify. Is it all in FB?
In Rdio I really enjoy the comments feature and how generally constructive it tends to be. In addition it's easy to find people with similar musical tastes in the list of recent listeners - I've followed people via this mechanism and found great music as a result. I don't see how to do the same in Spotify at all. Spotify shows me that 300k people listened to a band, with 18k new listeners today, but no individual link to any of them? And none of them can comment, post reviews, or link to music videos or trivia? Where's the user generated/curated content?
Granted I haven't used Spotify in a few years so it may just take me some time to find all of the things that are immediately at hand in Rdio in Spotify's (imo less friendly) UI.
RIP Rdio :(