Hi. I realized I posted the incorrect price/value for American and other breakfast options for diamonds. The price is 3900 yen or $47.50 dollars per person.
Also I went to the spa again and found out that there are a number of free exercise classes that are not widely publicized. These are free to guests and include things such as pilates, hula dance, water aerobics and stretching. You need to ask at the desk of club on the park (45th floor) for the schedule.

Cheers, Mary Anne