So I had my Aonics now for three weeks and can give my real usage impressions.
Comfort
They get a bit uncomfortable with my piercings after a few hours of listening.
However I managed to improve this by finding a better position for the headband.
Overall this isn't a problem for people without piercings and I would expect them to be very comfortable for those.
About the sweaty ears, yes I get those as well but it's still +25°C here. In the evening or in a climate controlled room they are fine.
I like that the ear cups are so far apart in the resting position, this way I can wear them around my neck without strangling myself.
This wasn't possible with the PXC550.
Battery life
I haven't heard the low battery warning yet and charge them about every two/three days.
I think they are my first pair of headphones which actually report the battery level correctly to the phone.
So when I see that they show about 20% in the evening I put them on the charger.
Misc
You can drive them passively which would have been great a few years ago.
Since I fully switched to Bluetooth for listening music on the go this is a feature which I don't really need anymore because my phone doesn't have a 3.5mm port and I don't know where my adapter is.
Cool to see that it works anyway.
Noise Cancelling
Works okay for my needs, it works really well for deep sounds like the rumbling of a truck or buss engine.
Less so with higher sounds like clicking, car wheels on the street or people talking.
The passive isolation works well enough so that you can switch off the ANC when it is windy.
The ANC works IMO much better when you're listening to music than when you're listening to podcasts.
Especially when someone is talking next to you. The PXC550 worked better with podcasts while commuting.
Speaking of commuting, I found that on trains the Max ANC setting would be the best, however that messes with the volume which is really annoying (
@Shure please fix this).
It would be nice if one could replace the hear through setting with the Max ANC setting on the slider.
E.g. "slider top" = Max ANC, "slider middle" = ANC off, "slider bottom" = ANC normal.
BTW, ANC definitely changes the sound, on normal not that much but on Max it's clearly hearable.
It doesn't make them bad, they just don't sound that great anymore.
Sound
I really, really like them.
They are basically what I have been looking for in a wireless headphone for a long time.
Clear sound and nice details, sometimes they are maybe a bit too detailed for certain people.
They are one of those headphones which can make a song unhearable when the recording is crap.
But that is actually what I want, on some songs I heard the musicians breath and the clicking of flaps on the instruments which I haven't noticed before.
IMO they go really well with music with a female singer e.g. Amanda Jenssen.
I don't really know how else I should describe them.
Verdict
When Shure fixes the problems with the ANC they are a 4.5/5 for me.
For a 5/5 they need to have ear cups which a slightly bigger diameter and a better material.
That said I still think they are the best Bluetooth ANC over-ear headphones on the market.
Maybe even the best Bluetooth over-headphones overall once I've heard the Pandas.