One of my favourite sushi and omakase places to visit that's outside of the downtown core, Aoyama offers great sushi for a very reasonable price. That being said, what blew me away the first time I visited was the omakase. At $55 it was loaded with seafood goodness and home-cooking love, combing cooked dishes as well as sushi fare.
The decor is pretty blah, and the service is really slow sometimes, since it's a family-run business and the few times I dined there, it was the chef's family who were waiting tables. But it was kindly and friendly service, so I will definitely be a return customer.