The staff on duty when I went there for dinner were very attentive. I didn't go very long without a full cup of tea and the food came out quickly. I do wish that they spent a little more time focusing on the preparation as the dishes we got were subpar.
The sushi chefs do not appear to have received any formal training in any aspect of sushi making. I'm by no means an expert but damn, it looked like they just threw together whatever was within reach and wrapped it in nori. The soup noodles were greasy for some reason, and everything that came off the grill was swimming in teriyaki sauce.
I don't expect perfection. I mean this is an AYCE joint after all, but the quality of the food and the skill of the chefs is borderline embarrassing. It almost seems that the owners either don't know or don't care to offer anything more than the absolute minimum. This place needs to shut down for a few weeks and train their staff on the basics. If that doesn't work then call it quits.