I went there for lunch with my Japanese friend. The menu outside looked good, though she noted that the characters on the signs were Chinese, not Japanese. I guess it's the same people who ran Hunan Kitchen? I definitely liked HK better.
The waitress was quite nice. Not engaging at all, but nice. I liked the decor and had positive expectations for the food. The lunch special was $8 which would have been a good price if the quality of the food matched everything else. The tempura was blah and the sushi was weak. We also ordered an unagi maki and I couldn't taste any eel at all. It was mostly cucumber.
I hope they improve their kitchen because Squirrel Hill could use some better Japanese options. Otherwise, please bring back Hunan Kitchen.