Good to see them expanding their presence on Twitter, especially with the launch of Apple Music. While it's cool for Beats 1 to interact with the social community, I think this is probably the most effective instance yet. Social customer care is a huge area of opportunity. Personally, Twitter is the first place I try to get in touch with companies when I'm having an issue.
It doesn't deserve a "finally," by any means, but it really does seem like an obvious move.
If you, too, have experienced "The shared library 'Cloud Music Library' is not responding. (503)," maybe head on over and give them a mention.