The upsides of the hotel are its location (but then again there are many others in the area) and the helpful concierge.
Now, the downsides...
The building CREAKS! We were there from Dec 26-29, 2005 and needless to say, we left the hotel, sleep-deprived. The hotel actually has cards to inform guests of the creaking noise due to high-wind periods at the front desk but it's a little too late once you've checked in! Perhaps, they should post it on their web-site.
When we complained, we were told that the building makes noises because it moves when there are high winds. And the building moves because of the erathquake-proof foundation? Eh? We work and live in earthquake and typhoon-prone Tokyo in high rise buildings and no, our buildings do not creak in windy weather.
The rooms we stayed in were tired looking and shabby, the sheet had a hole in it and the towels in the bathroom were old.
The housekeeping service is inefficient as there were always used cups and plates lying around the hallway. Yikes!
We are used to the "grand" Hyatt quality here in Tokyo and were very disappointed by the lack of quality in San Francisco. This particular hotel needs to be stripped off its 4 star rating.
We would certainly return to San Francisco but most definitely not to the Grand Hyatt.
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