OK, curiosity got the better part of me, so I went to pick them up today.
They do look better in person than on the photos, at least my Space Gray version. Enough has already been said about that case, I guess I'll pick up a nice leather case at some point. That would fit the APM well I think.
Comfort is OK, a bit too much clamping force for my taste. Pads are deep and spacious for my ears, the headband is OK an distributes the weight well. They do feel heavy in hand, and I feel their weight while walking around. I don't loose them during normal head movements, so overall that's fine. They have a nice low profile while sitting on the head, and the mechanism that binds the cups to the headband is really interesting. It has that kind of special Apple feel to it, with just the right amount of spring that distributes clamping force quite evenly around the ear, not just at the top like the mount point of the headband might suggest. Overall this makes the cups/headband protrude much less than with most other constructs. The pads feel rather cool
Regarding sound... lets say, they did not make me immediately sell my D9200. It is really fine, with string but not overbearing bass that is a tad loose, but not unattractively so. Plus this effect seems to be rather down low, so it actually fits my preferences. Upper mids sound a touch elevated/pronounced to me, just like with the HomePod. It's not aggressive, just adding a touch of liveliness. Voices come through very clear, and the bass does not taint the rest of the spectrum. Yet it does rumble, and very nicely at that: bass does have structure/definition, depth and stays away from just adding an effect.
It does not sound closed in, though the space seems not really natural somehow -- but on the other hand I simply don't listen to acoustical music on headphones, so there's no real space to reproduce anyway. Positioning is stable. Lets just say, they are not of the flat kind that always reminds one of a speaker too near to ones ears. Overall they do sound good, not only for a wireless headphone, but for a midrange headphone. I'd take it over an HD650 any day, but that may be due to my dislike for the HD650 sound signature (plus its very uncomfortable to me).
I put that Hearing thing on my control pane (or whatever iOS calls this upper right corner pull down sheet), and going by the assumption that SPL levels are quite correct for the APM they seem quite loud to me at 68dB shown output. Volume increments/decrement seem very fine, volume setting is not impacted by skipping titles (i.e. pressing the crown). That one really feels good, and I'm more than happy that they chose this over a touch interface: I think the worst idea with touch interfaces on headphones (which I regard as not adding anything helpful at all) was that double tapping to start/stop. Thats just so loud inside the cup that its unusable to me. Clicking the crown is barely noticeable, so much less disturbing. Having to locate only one know (mostly, the other one I won't use much) makes things easier as well: no need to identify the one with the knob.
Overall its good enough to make me ignore the rest of the wireless sector for quite some time I guess. I played around with the thought of getting the H95, but I'm happy I waited for these instead: neither looks really good to me, but the APM looks a bit better (I just don't like the large round parts on the H95, which seem just too large in relation to the pads, and that the gimbals don't follow the cups in form), has no touch interface (not even partial) and is even a bit cheaper.
I'd say the Aonic 50 still sounds more natural (and it does offer a real passive mode, which I consider a good thing) and maybe a bit more comfortable, but it obviously Misses that seamless switching between devices (which the APM obviously does, and does very well). Spatial audio is a bit of a curiosity to me, really impressive with videos, but... I seldom watch videos on my iPad. I wanted a wireless headphone I could use with both iPhone and iPad (plus a Mac on occasion), without the usual problems of Bluetooth multipairing. The APM does that, so I think my wireless needs are served. For the time being at least.