I'd estimate probably 50 people tops in the ANA lounge last night, it was very quiet despite the terminal being very busy. Food offerings were basic but good - no 3 course meal but better than you get in Koru these days!
I also visited the ANA lounge at Osaka (ITM) before an earlier flight. The lounge itself wasn't too bad but it has no food - little packs of rice cracker mix are it.
A Japanese lounge is worth the visit anyway just to use the beer machines!