My experience was better than the recent reviews.
It's true you don't get a warm service from the staff, but this has been my experience at most All You Can Eat places. They're busy but efficient.
Dishes arrived fast even with many customers there. The exception would be the green salad which was ordered first but arrived after two rounds of dishes. In comparison, the seaweed salad arrived within seconds so I guess they have some popular items ready.
When we ordered the bill the waiter asked nicely of everything was alright and he came back promptly with it and a credit card reader.
The menu is exhaustive : sushi, sashimi, different rolls (california, kamikaze...), tempura, soup (udon)... And a whole lot of warm items on the other side (grilled mussel).
Everything was good, we will definitely come back.