The initial load is much slower than beta 6, though - actually I think it was betas 5 and 6 that were really quick to load, but the GM is back to being really slow 🙁
It didn't work for me I had bout 40 songs on my itunes and 17k in itunes match. None of the match songs worked. I signed out of iTunes and went back in and now it works.
Now, I don't have iTunes Match but I've realized any media I've bought I can stream which I find absolutely amazing! Songs and music videos can be streamed/downloaded over 4G and Tv Shows/Movies can only be downloaded or streamed over wifi. Is this a known feature? I found it yesterday and flipped out haha.
Just a thought, but do you have an active wifi connection? If not then the songs may not play/download if you have "Use Cellular Data" switched off under Settings>iTunes & App Store.
I am still having album art issues. Several of mine are just showing up on my phone. The artwork is present in iTunes. Last week I went through the process of deleting all my music from iTunes Match and from iTunes itself. Turning off match. Then loading all songs back into iTunes verifying all the album art was there then turning match back on and letting match the music again.