Ate here twice over the Christmas school break, once by myself and once in a large group. On both occasions the service was very friendly and very fast, even though the restaurant was quite busy (mostly university students from the looks of things). Excellent in terms of quantity. I had the Tonkatsu ramen (great broth, tasty tender pork) and Shoyu ramen - think I like the Shoyu broth better. Also shared an order of Gyoza (large and tasty - very mild) and noticed a lot of tables ordering the chicken karaage.