Outdated and very expensive parking
We booked this hotel for 2 days via a travel agency in the Netherlands as part of of a round trip. I did not comply completely to our expectations. 
Although the lobby looked splendid, the room was outdated and needs clearly a renovation. 
The location of the hotel is also quite bad; at morning the streets around the hotel are crowded with beggars and homeless people. Despite of this, it felt safe to walk via Market Street towards the Center (Union Square), which is only a 15 minutes walk.
Because of the sinister neighborhood, it's not to be advized to park your (rental) car on the streets near the hotel. I saw a car with a window smashed just around the corner when we arrived.
Therefore it's almost unavoildable to use the valet parking of the hotel, which costed the staggering amount of $ 35,- a day
ADVISE1: if you're arriving in San Francisco at the start of the end of a round trip, don't rent a car during these days, especially when you plan to stay in the city itself. It's more convenient and easy to walk this relatively small city or use the excellent public transport. Between SF Internation Airport, where the car rental center is also located and the hotel is a fast subway (the BART). Pick up your rental car at the airport by using BART on the day you're leaving the city.
ADVISE2: if you still want to use the hotel parking, be aware it's located behind the hotel. There's no stopping possibility in front of the hotel in Market Street; drive along the hotel, first right (8th Street) and go to the right after ca. 100 yards (cross the private parking lot)