I like the design, and having a device with a display size similar to the Plus models in a smaller overall package will be greatly welcomed.
However, there are bug is iOS that have lingered since iOS 7, for me mostly related to manually syncing items with iTunes, but there are lots of other smaller bugs that just won't go away.
If I didn't care about manually managing a large library of music and playlists, and didn't rely so heavily on ratings/play counts and my personally-edited metadata of the media, I probably wouldn't care or notice. Lots of casual users buy stuff on iTunes, it takes no space on their device because they can stream it, they don't make playlists or sync multiple devices... I'm sure things work great. But so far, while tolerable, there's been a lot of issues with getting the old-school manual-management of items to play nice with iCloud.