I’ve been asked at times where a good Japanese meal can be had in the DC Metro area, and honestly, I can’t give much of an answer since evening fare is usually Japanese, like what you see here
But generally, and perhaps surprisingly, the quality of food served here at many of the Japanese restaurants is really not that great. Not bad, but I’ve had much better Japanese meals at restaurants around Ann Arbor or Novi Michigan actually.
NYC has great Japanese food; no different from eating somewhere in Japan and of course LA has no shortage of decent places too.
Part of the reason I was told (by a Japanese) that around DC, there may be 3,000 or so Japanese households, while NYC for example has 3 times that number. That could account for lack of a good Japanese grocery store or book stores around here too.