Tested at beta grid Voice 1. In open voice, the audio seemed "muffled", not strong, crisp, clear as Vivox open voice. My partner, whom I was testing with, saw that my voice was blasting red in Nearby Voice, even though my green lines showed normal. My partner even turned the slider to the far left and that didn't make a difference and sounded shrilling. Note that later, when we tp'd back to a normal Vivox sim, everything was fine. I did not experience any of the clipping and saturation. My partner also noticed a whistling sound in open voice. While on the premises, we tried private voice and we did not notice any differences between it and normal Vivox voice, which was a little surprising, as WebRTC was touted to bring better audio quality and clarity.