I've been here twice. The first time was about two years ago with my Korean teammate and we did bbq at our table. It was amazing! The food and the service was good. I have been talking about this place and wanting to come for a long time.
Fast forward to now. I had my farewell dinner here and brought about 15 people. The bbq was delicious but, unfortunately, anyone who had anything else had complaints. The customer service was terrible. One of the girls at our table was not even asked once what she wanted to eat and one of the servers got visibly upset about one of the tickets and crumpled it up at our table. A few of my friends were super pumped about the all-you-can eat sushi. I heard that the rolls had way too much rice and too little fish. Lastly, one of my friends said he got food poisoning.
I would say come with a small group or just a couple friends and just focus on the bbq.