The speakers sync perfectly with each other for pure audio, but the setup is definitely unusable for video or games due to the sync delay. It seems to work okay

The speakers sync perfectly with each other for pure audio, but the setup is definitely unusable for video or games due to the sync delay. It seems to work okay switching back and forth between AirPlay 1 and 2, so I can temporarily take over from Airfoil and use them as an AP2 stereo pair, in which case they sync well for video. Supposedly Airplay 2 was cracked about a year ago, but there still aren't any usable third-party implementations. Really a shame that Apple hasn't opened up the standard.