Now that's it's no longer in preview status ...
... there are a few issues that stand out. I'm running on a Windows 11 desktop.
1.) After PC sleep/hibernate the app is unreliable. It usually plays a few seconds of the existing song and then freezes.
2.) Skips/glitches in playback semi-regularaly. Definitely not an issue w/ my system as I can rewind and reproduce the same failure at the same spot in the track every time.
3.) More of a feature request than an "issue", but I really want to be able to remove a song from a playlist while it's playing from that playlist. It's a super convoluted process to do that as is.