Hapa is trendy Sushi. It isn't the best quality or authentic rolls but its usually pretty tasty and a good place to take dates.

I'm a fan of Banzai Sushi on Leetsdale - almost never a wait and I have always had great sushi there, albeit a long drive from my side of town.

Two best places I've been to in the country at Sushi Rock in Hawi on the Big Island of Hawaii and I think it was Oishi in Park City UT.