It is not the first time I complain about slow sync over wifi on my iPhone 5( I had tried all the possible solutions, including the obviously useless ones suggested by the support team) I posted a topic nearly 6 month ago about the same issue. 6 month later, Spotify for iOS had been updated for couple times(even the UI had been tweaked, and they have the time to make it looks better but not perform better)but hell SLOW SLOW SLOW Wi-Fi sync(descent sync speed under LTE, but these days cellular data is expensive!) is still here!!!! I am not coming back to Spotify to waste my money( I mainly use it on the phone). Hello Rdio(at least fast sync both cellular and wifi) and goodbye Spotify.