it's a very popular points redemption cat 1 hotel in a popular city and makes like one or two rooms available. There are a TON of people staying here on points simply because it's japan and cat 1 so temper your expectations about availability.

But yes the property does play a bit of games with points availability. The rooms manager changes the category from city view to standard 1-3 days before the date if there is space available, making them available on points redemption but only on short notice. If you want advance availability then cough up the money.