Only saw the C8 and A lounge. The C one was fine but nothing to write home about but the A lounge was a revelation as I walked around and found each food station seemed to have something different. There is a smoking area also in the lounge and its sheer size made it easy to find somewhere quiet
A word of warning for first time visitors if your flight is leaving from a different part of the terminal from the lounge you chose make sure you know how long it will take to the gate because it can be a very long walk