Just go the cable this afternoon (and almost 3 weeks of shipping, which is too long). I've bought other stuff from Brainwavz before with good success, so I thought I'd try again before buying an entire replacement headset.
Cable build quality seems solid. However, as soon as I plugged it in I could tell that it was a much softer sound than the stock cable. My guess is that the impedance in the inline volume control is different. Haven't tried the mic in a conversation yet, but sidetone and loopback sounded 'okay'. But the too soft audio is a deal breaker for me. Back to the drawing board for something else.