I have tried a friend's, and it worked great. I recently bought a Boss WL-20, so nothing needs an AC cable, and I can charge both transmitter and receiver with a USB cable. But the G-50 worked well and is really easy to use. It easily sounded as good as a cable.
I have a g50 and a g55. Sometimes the battery contacts get bent from rechargeables and lose contact if shaken hard. I re bent mine and put a new jack and door on it from full compass. They both work good and are used a lot.