When using the USB connection, the best quality, there is a several second delay between pushing the push to talk button in Discord and being able to talk. It makes the headset unusable when using Discord, which I use constantly.
This is a return for me. Going with the Razer Kraken since I know it works and sounds good.
Related post here: https://forum.corsair.com/v3/showthread.php?t=195132&highlight=discord+delay