The AirLens is designed to mate with PS Audio DAC’s. Since you own their DAC, I say it’s worth the hassle of auditioning in your system. My experience tells me manufacturers touting on higher or better performance based on proprietary connectivity doesn’t always pans out. Case in point, EMM Labs NS1 and DA2 DAC. That’s at $35K combo I’ve owned it in the past, guess what; I preferred the sound of Aurender N10 with DA2 using AES cable. Sent back NS1 after 30 days of auditioning using their proprietary EMM Optilink interface, which supposed to sound better than AES/SPDIF and USB.
And with AirLens, you still a separate PC to run Roon Core on your network.