Even during consecutive holidays when hotels jack up prices to rip people off, this one was reasonably priced so I picked it. I booked the Cerulean Floor, and on site I could upgrade to an executive room for 12,000, and I could use the credit they gave me to cover it. Their room upgrade pricing is actually a fixed fee written in the employee handbook: standard to Cerulean is 4,000, Cerulean to executive is 12,000. As long as you book the cheapest base room and pay for the upgrade at the front desk, it's tens of thousands of JPY cheaper than booking directly online.



This upgrade price list is indeed cheaper than booking directly online, but it depends on your check-in date and room availability. If the hotel is fully booked or it's peak season, the front desk may not allow the upgrade, so it's best to email ahead and ask whether an executive room is available for upgrade on that day.