In short, yes, I’d use it.
I currently use audio relay for remotely monitoring a live audio mix. Whilst access to my system is either locally over WiFi, or remotely already over the “internet” through a VPN connection, I’d be keen to know how you’d accomplish this, and at what cost; ie latency, compression, quality, etc. Would it have to traverse a 3rd party server for session iniation with peer-to-peer streaming?