The receptionist was rude and arrogant regarding Marriott points not allowed. The room heater/furnace clanked all night, there was an emptiness to the hotel even though it was at Union Square in SF. Staying in SF numerous times throughout the year, I have yet to experience this attitude and lack of friendliness of staff. The restaurant, albeit empty, was very good with the chef coming out to talk to us and bring us chocolate dipped strawberries. That was the only time I felt comfortable. I will not return to JW Marriott in SF.