I stayed in this property for 4 days on business and was very pleased. It was beautiful, very clean and service was outstanding. I only give it four stars because of value but this is Tokyo, but I depending on your needs it is very worthwhile.
Location was excellent to my office and just a short walk to Roppongi. There is also a convenience store across the street and a market in the adjoining building.
I did not try any dining options other than room service the first night, which was good(Japanese curry). The buffet looked very good, but I cannot see myself spending $65.00 for any buffet regardless of what they were serving, but this is more of a personal choice.
Overall Great Stay.