I won't switch from Spotify though because it meets my needs and furthermore they keep innovating. One thing I can look forward to in getting back to the office on Monday is my new week's playlist that Spotify creates for me. I listen to a wide variety of music and they have helped me discover a lot o f artists and songs I'm really into.
'Discover Weekly' is the one feature keeping me with Spotify. Their UI annoys me on a daily basis, but I've got a lot of great recommendations from them. Frankly, I wish Apple would mirror this feature, though it goes against their whole 'human curated playlists' philosophy.