This is a good hotel. The rooms are quite spacious considering its in such a big city. Comfortable beds, good fittings, we had a nice view of the bay and the rainbow bridge. Breakfast is served in three of the restaurants...good breakfast. The restaurants in the hotel are all fine. One downside is that most of them only had Japanese menu cards (and without any photos) which was very inconvenient for non-japanese-speaking tourists like us - its not practical to have someone tell us what each of the option on the menu means! So most of the time we ended up going to the restaurants in the malls which are fortunately just besides the hotel.
Staff is courteous and efficient. The airport bus was very convenient. Also, the monorail stop is just opposite the hotel - very convenient to access the city.
Good hotel, would recommend to anyone spending a few nights in Tokyo.