I watched a review that basically said that these are a jack of all trade headphones, but master of none.
For the price, you can get better sounding headphones. For the weight you can get better sounding headphones. For just about any metric, you can do better. But where Apple shines is putting it all together into something slightly better than the Sony headphones that integrated into the Apple ecosystem.
The problem is that the only people willing to pay over double the $250 for Sony's are the people who are going to care about sound quality, and then at $585 (because you need the stupid dongle to get that quality) there are much better choices.
This is like Apple with the iPhone all over again. At launch, at that price, with so many compromises, it's just not worth it. Maybe when Apple gives everyone a $200 store credit they'll make more sense, but for now they don't.