Got mine at 8am this morning (thanks DPD!) have had them on since whilst catching up on work emails.
as a MASSIVE fan of the Sony’s, these definitely are a notch above. Comfort wise I’d say they’re on par, for me at least. However the headband on the APM really is impressive. I can’t feel it at all, and I’m usually super sensitive to this!
sound wise - they’re just a lot more balanced than the Sony’s and much to my liking (which is important to take into consideration).
are they worth £549? Probably not to be fair, however they are better than their cheaper competition and the integration and convenience with my Mac, iPad and iPhone and seamless switching makes them compelling enough for me to keep. Especially as I often flick between the 3 for teams calls, slack calls, Skype calls and also music / YouTube during work.
in summary, I have just put my Sony’s up for sale on eBay!