Given the choice, I would give Stingray 3.5 stars for this dining experience.
Sushi is good... but not great. I always rate my sushi experiences based on the complexity of the rolls, freshness of ingredients, and taste of some of the more complicated rolls on the menu... and they were just ok here. Maybe I just dined at the wrong times... but I wasn't overly impressed by the sushi at Stingray.
On the positive side of things, the appearance is very hip and cool... and the cucumber martini was excellent! Also, the location is a great spot to hangout and be seen (or to do the seeing). And the patio is heated on those chillier nights.