My first impressions this morning were good. Beats 1 seemed to be playing older music and it was varied (jay-z followed by the Beastie Boys). Catalogue range of music is pretty good - compared to spotify which often has albums missing from more popular artists.
The bad news though - this afternoon I noticed most of my playlists had disappeared. When trying to recreate one for a run I found some albums were missing (mostly CD rips of compilations) and some obvious UX issues when creating a playlist.