Just been to Ishikawa 1* in Shinjuku Tokyo.
It was nice kaiseki but I think overpriced for what it offered. 35kY = circa $350. Drinks weren't particularly expensive but I stuck with o-cha.
They did embody Japanese service by converting some of my unused salmon rice into a rice ball to take home in an impressively expensive looking doggy bag
The restaurant was beautiful and of course impossible to find.