The restaurant is tiny, only a table or 8 available, so you do best reserving in advance. The interior is not really chic or special, but we felt right at ease. There is no ordering a la carte, there is a set menu. We had about 8 dishes (several appetisers, miso soup, sashimi, tempura, fish main dish, meat main dish, ochazuke with salmon (which is like a rice with tea) and banana mousse as dessert). They tasted great - especially the sashimi - and we left the table satisfied. The service was great, the host made us feel welcome. (Also we were in good company, since the painter Luc Tuymans was just a few tables away) I loved the experience and am glad we tried it, but I'm not sure if we will return because 120 euros for two people is kinda steep in our opinion.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.