Two skyclubs at Terminal 1, NRT
There is the newer one across from Gate 16 and the older one near gate 26. Both, in September, had the same food including one species of Sushi ("Tuna Carpaccio"), the beer machine, lots of free Apple Computers overlooking the ramp and other amenities including showers.
Forget about the KE lounge downstairs as it is less than marginal. Just hand the young ladies at the entrance your membership card and they will be happy to admit you.
Enjoy.