I stayed at the Westin Tokyo this week. Not bad - and the biggest rooms in Tokyo, they claim, but not as good as the new Grand Hyatt which is a thing of beauty! If you are going on vacation, and would like to be near a metro station, shops and restaurants, the Grand Hyatt is better than the Park - see the current thread including my post. There are corporate rate codes elsewhere on this forum that can get you a room for Yen 27,000.