I've had mixed experiences dining at Stingray; both times were during happy hour. I called to make a reservation but they do not allow them for parties under 6 people, so we took our chances.
Stingray's happy hour menu is smaller than most but there are great deals on entrees and classic rolls like spicy tuna, the Vegas roll, dragon roll, shrimp tempura roll, and the crispy spicy tuna (my favorite--it's not so much a roll but it's delicious: panko-crusted rice topped with tuna and a jalepeno slice). The happy hour menu also has good drink specials: $1 sake, half price sake carafes and specialty drinks, and $4 wine. Decent sushi at great prices.
I haven't tried their specialty rolls but they appear to be standard $12-$16 creations. It was an impersonal dining experience and the servers seemed distracted. Also, a table for two is VERY narrow and small; there is only room under one's chair to put a purse or umbrella.
All in all, it's decent sushi at reasonable prices (at least during happy hour).