I have a G930 that I don't use anymore. The covering for the memory foam ear pads broke off into bits and pieces due to the sweat. Also, the micro USB charging port came loose, so I'm unable to charge it. There were some instances where I broke the USB antenna by accident with a single nudge from the port, so I'd like to see if Logitech can reinforce that part.
I wish I can get a replacement for my headset, but due to contact issues, I think it's time for me to buy a new one.