For what it is, the place isn't too bad.
Service is good and the restaurant is beautiful. So why 2 stars?
It's the food. The ramen just isn't good. It lacks flavour for ramen. The food wasn't bad and I would give them 3 stars but for something at that price that's more higher end, I expect better. I have seen videos in which Dave Chang (owner) say that it's a western version of asian cuisine in which it may be because it is much less saltier but I still left feeling kind of disappointed. You can make food more flavourful but still less salty.
In the end, it's not a bad place and maybe it's something you may enjoy but if you're more of a foodie and want actual ramen, there is way way better ramen than this.