Craig Hockenberry: Half-Assed:

"Mac developers have never had access to TestFlight, either internally or externally. It’s “coming soon”, and until that day comes, there’s no way to test apps that use the iCloud servers. Which sucks for both the developer and the customer.

"But wait, there’s more."

Jim Dalrymple: Apple Music is a nightmare and I’m done with it:

"I had high hopes for Apple Music. I really wanted it to work and become my default music streaming service, but after the problems I’ve experienced over the last couple of weeks, I’m disabling it altogether.

"My problems started about a week after installing Apple Music. While Apple Music Radio and Playlists worked well, adding music to my library is nothing short of a mind-blowing exercise in frustration."

Apple is trying to do too much, too quickly. And it's biting them in the ass.