Overall:
Having heard that they did dim sum as well as sushi, curiosity got the better of me and I had a peek inside.
It felt very strange to have Chinese dim sum cooked Japanese style. From the salmon roe on top of the sui mai (instead of the usual orange dot), to the different spices used to flavour the meat, it was an interesting experience. I also found it was loaded with salt and msg, which may not go down well with some people.
The variety of dishes is not great. There are the favourites, such as char siew bau, sui mai and squid tentacles, but there are also others which I haven't seen before.
I would say that this is definitely not authentic Chinese dim sum. That being said, it is still quite tasty and worth a try, the concept is innovative in combining the sushi train with dim sum. It is, however, quite pricey and the servings are smaller than you would expect at a normal tea house.