Somewhere between stupid-expensive Shogun and super-cheap Sushi Inn lies Asuka. On my last visit my friends and I split a platter that was a mix of Sushi and Sashimi, which was tasty but a bit weak with respect to the variety of fish we were given. The maki rolls we shared (Unagi, Hamachi, and soft-shell crab) were all really good. For the price, it seems like a very reasonable place to go. It's definitely the place I would pick if I was going to grab sushi in Yorkville, but I don't see it as a place you need to go out of your way to try.