Tokyo? Which lounge? I suppose you mean some non-SkyTeam lounge. We flew back from Tokyo last week and we were told we had two options, the Korean or the Delta lounges. We were also told the Delta lounge was better so we went there. On the plus side we found somewhere to sit down, which is the most important thing for us and not so obvious in Europe these days (in the past month we have had to leave lounges at CDG and ZRH due to lack of space). We could even plug our computers. But the catering was quite similar to AMS and definitely not as good ad CDG, at least in our opinion. It's a shame CDG doesn't ban guests during peak hours.

Btw, AF/KLM almost always want our opinion after long-loul flights and sometimes after shower intra-European flights.