We have lived and in Japan, and are pretty au-fait with Japanese food. We visited this restaurant and were extremely disappointed to say the least.
The chicken yakitori was not cooked fresh - it had obviously been reheated, and the chicken was tough and inedible. Worse was the beef yakitori skewers, where the meat smelt and tasted bitter, as if it had been sitting in your fridge for too long and had gone off. When we advised the hostess of this problem (in both Japanese and English) she refused to acknowledge our issue and instead claimed "the meat always smelt this way". We will be lodging a complaint with the food hygiene authorities.