Still need to get to that. Do you have specific questions? The bulk of questions I receved is if wm1zm2 worth extra over wm1am2, something I can't answer because I don't have access to am2 model.
But overall, the sound of wm1zm2 is great (excellent pair up synergy with all iems I have access to), the build is solid, the output power is adequate for most of the high end hybrid/tribrid/quadbrid iems and easier to drive cans.
You do have access to streaming apps, but the negative is that app performance is sluggish relative to other DAPs running Android 11/12 with Snapdragon 660/665 SoC. No way around it, even after a careful debloating.
Is that a showstopper? Don't think so. Some people don't stream, others download to listen offline. For me personally, it gets a bit frustrating when I'm using Amazon HD and scroll through my playlist where it pauses, not the sound but the list. The gui response time is not as fast and scrolling not as smooth. But that is expected since we are dealing with an older processor.
Otherwise, it is a solid choice that I have been featuring in all of my latest reviews as part of pair up and comparison. Just need to get to the full review.