For an all-you-can-eat joint, the food is pretty good. For some reason, prices are sky-high... try to avoid going to Hockey on a Friday night or weekend.
As for many other all-you-can-eat places, I found that Hockey doesn't always bring out every roll/order you place with the waitress... At times, I've had to remind them about my orders, and it has the potential to be very annoying.
Overall, a good local spot for all-you-can-eat, but certainly doesn't compare to regular sushi restaurants in regards to quality and service.