To add a data point:
Just checked in here for a one night stay. Platinum with 115 nights this year and received an "upgrade" to a standard sized room on the concierge floor (aka not an upgrade). There's a basket in the room with some Kona chips, Japanese Hi-Chew candy and two pairs of Laylow sandals -- all free.
Room is very nicely adorned with mid-century furniture light pastels. Feels like I'm in Hawaii.
Breakfast will be the same as reported -- cold options along a wall by the elevators, but food vouchers offered (I took the points).
Staff has been polite and the valet quick.
Okay, time to go check out Marukame Udon.