We went during Grand Opening Week and they had great customer service.
Food: Mediocre. The rice was too sticky and unagi sauce was too thick. The Shrimp Shomai were very good though as well as their baked mussels. The awesome concept of the whole thing is pretty good though considering it was AYCE and you can grab whatever you like in front of you as well as asking a waiter/waitress to grab you a full roll or any appetizers. If the quality of sushi goes up. I'd definitely want to come here again.
Customer Service: Great customer service. on top of cleaning after all the dishes and making sure their guests had everything they needed. They did charge automatic gratuity for the special so it equals out to regular price you just don't have to add tip techinically. I'm sure that'll change after the special they have going on.