Whether you're looking for take-away on your lunch break, or a nice sit-down dinner, this is a great place for fans of Japanese food to go. The waiting area for take-away gets crowded during the day, but there is a good amount of seating for those dining in. They make everything to order, sushi excepted, so there's a 5-10 minute wait for your food.
The staff are friendly and efficient. You are a little better off paying cash as there's a $1 surcharge for EFTPOS transactions under $20. They do rewards cards for bento boxes and jelly tea that give you one free after ten purchases.
On the subject of bento boxes, they do amazing ones starting at $9.90. A generous serving of rice, two sushi slices, a cup of miso soup, salad and your chosen dish. The salad is always crisp and lightly dressed, the rice is never soggy, the miso is always piping hot. The donburi (rice and a main dish) option starts at $7.90 and is great for those who don't get as hungry. You can pay $3 to swap out the rice and get udon or ramen noodles instead - the udon and I'd imagine the ramen as well transforms it into a soup. The take-away lunches lean very heavily towards the carnivorous crowd, but vegetarians can get teriyaki or curry tofu, as well as vegetable tempura.
Dining in, you have an option of a great range of traditional appetisers like gyoza, tokoyaki, salads and spring rolls. At lunch, Japanese green tea is free. Dinner time, it goes up to 50c a cup. If you don't feel like hot food, there's a huge range of sushi and sashimi to nibble on instead. After dinner there's the option of fried, green tea or black sesame ice cream.
My personal recommendations would be the terikayi salmon bento (especially if you don't like raw/smoked fish), katsu pork (I have a weakness for kewpie mayo) teriyaki beef udon (the noodles are sumptuously thick and the beef so tender). It's also worth liking their Facebook page if you're in Subiaco a lot, as they'll often do deals based on key phrases or likes. I've taken several of my friends here for lunch or dinner and we always leave full and happy.