First up I want to thank everyone here for advice they provide - I spent ages trawling through threads etc getting ideas for my trip.
I headed to SF after a week in New York and arrived at midnight feeling like death after a flight from hell from NY because of a bad cold - Duane Reade got good business out of me in SF!! I had booked the Intercontinental Mark Hopkins car service and it was so nice to be greeted and whisked into a nice car for the ride to the hotel.
Overall - really enjoyed the stay at Mark Hopkins. I am an Ambassador member and had also booked a Club Room - highly recommend this for the value to get.
Had a high level room - double as a friend joined me there which was part of a suite when required. It was also disabled access so we had heaps and heaps of room and a massive bathroom with a large walk in shower and a separate bath.
We got good use from the Club Lounge. A large breakfast held us through most of the day so only required a snack when out unless we got back early enough and had high tea or cocktails, cheeses, savouries, canapés etc early evening.
Couple of gripes - Internet charges (not that we paid it due to being an Ambassador or room type) but high. Also lack of power points in the room!
Service there was great. Loved the views we had and found it pretty quiet generally.