The low rating is not because of the taste of the food, the ambience of the restaurant, or the service of the staff. It's more of the cleanliness of the food.
I had the Norwegian. Right after the meal, I started to feel very nauseous, and light-headed and this feeling continued for at least 3 hours until I reached home. I almost wanted to puke on the way home. The food poisoning could be due to the rawness of the egg, or the contamination of smoked salmon. I have no idea, but I highly doubt if I would ever come back again, or recommend it to anyone at all. This dining experience sadly wasted my whole Saturday afternoon.
To be netural, Food wise, the food did taste normal and portion was generous. Ambience wise, it's kind of relaxing and I would say it's a great hangout place with friends over the weekends. Service wise, very average. We were told that we could only stay for 60min, sharing table, because the table was reserved after that, which I highly doubt so because when we were about to leave there were no queue outside of the restuarant at all. You have to take your own water.