just a little grim
We rented a japanese style room, for four, for a single night. 
Pros: fun sleeping on the floor, interesting room with tatami mats on platform, japanese style bath, big sunny windows, interesting zen garden in room. Fun neighborhood- Japantown and the Fillmore.
Cons: a few biting bugs, futons not available for all family members, so one of us slept on a pile of pillows, and we had to stay up an extra hour to get those. "Soaking bath" is built into the floor, out of floor tiles, hard-edged and square, very shallow (a rusty drain leads out 1/2 way up) and square, tiles stay cold even with very hot hotel-style water, so that's not much fun.