Got my APP2 and have been wearing them for the last few hours.
I mainly listen via AP3 and APM. I do have a pair of AP2s that will be retiring. I had AirPod Pro 1s but they hurt no matter what tips I used and eventually they developed the crackling and despite replacements I never could get used to these in my ears.
Disclaimer: My hearing is crap. So take my audio quality opinions with whatever grain of salt you wish.
I am very impressed. The sound quality is WOW amazing. Bass is very punchy. Going from AP3s to the Max to the APP2s ..... I much prefer the audio quality of the APP2s by a lot.
Noise cancellation is almost equal to my APM. Testing in a noisy room with a mobile AC (exhaust vent to window). My APP1s were not close to this. (I gave them away last year).
I spend all day on calls so comfortability is HUGE. The AirPods Max just makes me overheat even with AC running heavily. So my favorite AirPods are AirPods 3. But now.... I can't unheard the quality difference...
The volume changing is very nice and works pretty well for me. You kind of have to let it know your finger is there by resting it then move it for it to work for me consistently.
Biggest thing I noticed? Audio quality and comfortability - I could wear these all day easy.
I like these better than my AirPod Max... To me they sound better than the Max. I'll be looking to sell those.
I had my APP2s delivered via courier direct from Apple and noticed that despite ordering AppleCare+ it was not applied so I'll have to deal with that tomorrow if it doesn't fix itself.