I only use AudioRelay for one task - Make my phone (and the headset plugged into the phone) as the Mic and Speaker for my PC.
So I can, for example, connect to a Zoom call using the AudioRelay PC devices as the Mic and Speaker in Zoom and be free to walk around. (Tried any number of Bluetooth headsets but the audio quality, range, and latency was terrible).
Works great. Everything the Bluetooth was not. But each time I start the two apps (PC and Phone) from scratch, I have to do a three step setup:
Phone
| Player |, {PC} >
| Server |, Microphone >
PC
| Player |, {Phone} >
This not a deal breaker. But my hope was I could just start the two progs and it would remember my previous connections and settings and take off.