I upgraded iPod/Phone to iOS8.4 and iTunes on Windows7 PC to iTunes12.2
No real issues so far. I think it’s because I don’t use iTunesMatch and I didn’t join AppleMusic.
That means the Radio thing doesn’t work: No featured stations,… except beat1, the live radio station.
As DJ-Software I use Traktor Pro2: also no problems detected by now.
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Actually i love the new features and possibilities of the upgraded iPhone/iTunesApp which is called Music.
– Playlists on the fly
– in addition to the Star-rating there is now the Heart-rating and you can put all the hearts in a smart-playlist.
– shuffle songs in the playlist (even while playing from the list) very easy.
– create playlist while playing.
– etc.
So just DON’T Join AppleMusic and DON’T Subscribe to iTunes Match by now.
This is my personal experience.
Actually I would love to use a sort of AppleSpotify and they would sell a lot of music to me.
Imagine Spotify with a buy-now button!