I've played a tad more than 3 matches
Only really had an issue with 2 of those but as those were recent it didn't set a good time. However in most matches players don't seem to be able to keep their mouths shut on all but critical strategy talk.
I'm a proponent of voip in this game - luckily I have a number of friends where we team up in this way, however that as well must have mute.
Tals