Mine is working, sort of kind of. It’s producing sound out of the speaker. I had some issues getting it working on my Itty Bitty Beat Box. If I remember correctly I ended up running the installer for the speaker pHat. It has the same DAC chip on it. Running that installer put all the software hooks and links etc in to get it to play the sounds from the Piano Hat and Drum Hat. That Pi is also running an older version of PiOS from before the Pulse Audio switch.
The LCD isn’t doing anything and the only button that does anything is the X button which I setup to do a shutdown via a config.txt dtoverlay.
The speaker pHat is no longer available so I had to make do with the Pirate Audio Speaker. I ran its installer but didn’t get any sound when pressing buttons on the hats.
Build an Itty Bitty Beat Box - Pimoroni Yarr-niversity
EDIT: I found my thread on what I did.
Pirate Audio needs better support. =( - Support - Pimoroni Buccaneers