As Bob points out, it is really good for situation where multiple people are speaking or could speak.
I would use it more if it were more flexible in it’s application – on a QU32, only having it on channels 1 to 16 is a real pain in a installation set-up where all my team expect channels 1 to 16 to be instruments and vocals. Yes, I could go and change it all but I am hoping that A&H will make the simple software change to allow it to be used on other channels. As mentioned before, having it on banks of 8 channels would be fine – ie say 1-8 and 17-24. Even having it on either 1-16 or 17-32 would be a useful improvement.