Okay, First of all, I agree, these headphones feel really premium. In terms of material and feel, like them more than the h9i's i tried for a month, which costed a bit more.
But i dont know how you are happy with these. literally googling about these headphones you can find so many different pages where people are complaining about the multi device management on these issues.
The reason is, there is no way to manually choose what device will output sound to the headphones. I always have them connected to my MBP and iphone. When i want to play from my iphone, its usually fine. But whenever i have to play from MBP, i have to turn off the device, and just hope it switches to my MBP. first of all this dosent happen like 50% of times, and i literally have to go and disconnect my iphone, which means i cannot even use the app to change anything on headphones, and secondly if i randomly pick up and unlock my iphone, it will stop mbp Audio. mind it not stop the song, just stop the audio output in headphones, and the song continues playing into the void.
Another case thats has happened not very often, but enough times to be mentioned here. I am playing music from my iphone, i stop the track and i play it again, and no sound comes on the headphones. I go check in the app and it says its streaming from my laptop. (at that point my laptop is literally in a sleep state in my bagpack).
The best resolution for this will be a manual button to change sources, but i will be happy with even like an option in app to change sources, better than nothing.
although if bose really wanted to, they can push a firmware update that allows you to remap either the assistant or NC toggle button to changing sources, or even add it as a double press/hold function.