Hakatamon is a decently good, homestyle Japanese restaurant. The udon is homemade, and most of my friends love it (I think the broth tastes too smoky, personally). The fresh sushi portions are large and *very* reasonably priced.
Don't go there expecting great service. It's always understaffed and after you wait for a table, you'll wait even longer for the waitress to remember that you're there.