Up to 30% off at 27 Hilton/Conrad properties in the Asia Pacific Region. Must be Hhonors member which is free to join.
For stays between 21 February 2018 and 31 December 2018.
Example:
Hilton Tokyo Bay
From US$185
Members US$130
Non-members US$139
When I was playing with this over the weekend it looked like it includes free breakfast also (or maybe only works on rates inclusive of breakfast). Still works out good value if the hotel wasn't too high to start with