Recently I was near to see the Watanabe`s work and on the opposite side of the bridge there were two towers connected from the top to combine one unified skycraper which always hits the horizon line of a tourist who arrives to Odaiba by monorail train (Yurikamome line). Wikipedia says it is only 100.5 metres tall. It seems more than that however I am not going to argue with them.
It is called Tokyo Bay court club, highly reserved in the luxury field. The designer is a world famous firm to that level. From their website you can have a look of the style of the rooms and all the project they did all around the world, actually only the wealthier part of the world that probably can afford their bills! They called Trusty Hotel, there must be two different luxury organizations in the same body, it would fits well.
Needless to add anything else.