I really enjoyed all the dishes I tried here and I haven't had better all you can eat sushi that I can remember. There is a huge price difference between lunch and dinner, so if you can swing a huge lunch that would be your best value. There are a couple of dishes that are only available on Fri/Sat evening (the most expensive time) but nothing indispensable.
No drinks are included in the all you can eat menu, which is too bad, but they were good about keeping my water full.