2 Day Update
So far...here's how my impressions have changed....
Comfort
I was starting to question if the comfort was good enough when I first tried these on. However, after trying them over the last couple nights, for at least a couple hours straight a time, I've found them to feel more comfortable than when I first tried them on. This could certainly be due to me getting used to how they feel. Maybe...maybe it's due to headrest stretching or cups having less pressure. But I have to be honest, it's probably just me getting used to it. In either case, they do feel more comfortable than initial impressions might give. I find myself adjusting their position on my head less than I did the first night of trying them.
Time will tell, but the weight of them may yet prove to be something I could do without. For now anyway, comfort isn't the make or break decision in owning these. They fit just fine.
Tech Features
The ANC and transparency in day to day use are indeed nice. It's sometimes the little things you appreciate. Getting up from your chair to get something in the kitchen, not having to worry about wires, being able to click transparency quickly and easily to talk to people or to feel the room around you after a listening session - it's a nice, fluid experience taking breaks from the music/video. Sometimes it's the little things that make us happy.
Sound Quality
I still can't say if these are "objectively" better than other closed back wireless. I humbly admit I just don't know how enough closed back wireless sound to truly determine if these are worth $550 when less and more expensive options exist that I haven't had experience with. All I can say for sure is that I enjoy them greatly and am happy to pay $550 for them. I still find myself watching YouTube videos, mostly APM review videos ironically, and hearing little sounds picked up in their audio that I simply do not hear with AirPods Pro. Not a good comparison? Sure. I'm sure other headphones pick up those rustling papers, sloppy mouth noises, and whatnot too. But the point is worth mentioning that the APM do too. Details are there, IMO. Enough detail anyway that I really enjoy what I have on my head.
I don't want to get lost in over analyzing. I love hearing all the things on the track. The APM seem to show me as much as the 800's do. Quality isn't the same obviously, the 800 S is better at $1500, wired, open back, with external AMP/DAC. But let's be real...a wireless headphone having the privacy of a closed back, with portable AMP/DAC built in, still being able to retrieve details and be enjoyable?
Overall Keepingness
I don't have a good sounding wireless pair of headphones. I could keep these to have that category taken care of. Your mileage will vary from me. Maybe you have closed back wireless already. Maybe you love them. I can't promise you these are better or worse for you. What I can say is that these are very enjoyable and high enough in fidelity for you not to feel like you're missing something out from the tracks. The frequency response may not be your thing, and you can try to adjust that with accessibility or EQ presets on the phone, but I can't say if it'll replace what you already have and love in the wireless department.
When you take the enjoyability of the fidelity that is present, along with the convenience factor of the tech (ANC, transparency, pairing, etc.)...it's still a good choice after a couple days of use.
I'm going to keep trying stuff until the last second I am allowed to return, but so far it seems like something worth keeping unless it doesn't fit my use cases in life. Mileage and preferences vary people. But this is worth the price and then some, depending on your situation and taste.