Kind of like Japanese tapas (Izakaya?), you can get all sorts of interesting small dishes, like orange salmon canapes, oishii lobster (our favorite!) - including strawberries and served with shrimp chips, and many others.
In a city with a bad reputation for sushi, Oishii manages to put together a very interesting and solid selection of quality dishes, and is still reasonably priced, at least in 2010. Definitely a neighborhood go-to spot, and at the same time unique enough to please visitors to the city too. Definitely to be recommended.
Great for groups too, as they have a decent amount of space, and I think they have 1/2 price cocktails on Thursdays.