I do, but I rarely talk (Bought the headset like a week ago and I think I've said 4-6 short sentences top).
I'm very insecure when in comes to talking, mostly because I've never had someone to talk to in english, so the result is a heavy accent with an occasional stutter, making it hard to understand sometimes. (My primary language isn't english if you didn't catch that, I live in South America).
So I just put my headset on mute and listen others talking.
Same here, I live in Asia and English is not my mother language (I speak Cantonese), I use it couple time in GTAO. Although I could understand 85% of what's people talking, I could also speak with the other too however I can't express myself sometime because I don't know the vocabulary of that thing i wanna say.