Fantastic Service, Great Value and Perfect Location
My husband and I stayed at the Hilton for a family gathering of my Mother's birthday. The location is 3 blocks from North Beach and 1 block from Chinatown. We found a great deal online for a top floor bay view room with a balcony. Hilton has great specials online if you prepay your room that are amazingly reasonable. 
The hotel is so well appointed and the staff is welcoming and efficient. In particular, Jennifer and the Front Office Director Mesui were wonderful and took great care to make sure that our stay was special. 
I travel often and this Hilton is one of the best hotels I have experienced. Our view from the room was beautiful and the balcony was a perfect spot to lounge and talk.
Some key points:
Try Tru Spa in the hotel. My sister-in law and I had pedicures and the desk staff was so friendly and our manicurists did great work! We were offered water, tea, or champagne. Great treat! Book with Amy for your pedi or waxing treatment.
If you choose the executive floors for your room, do check out the executive lounge. There is complementary appetizers from 4p.m. to 7 p.m. with great views of the city.
We also enjoyed talking with Sharon on our first day there while waiting in the bar for family to arrive. 
The breakfast buffet was also very good, they have enough choices to please everyone.
Great restaurants are so close. Right next door is Alfred's Steakhouse, a wonderful atmosphere of old San Francisco, so elegant and fantastic food. Ask for Martin as your server.
Three short blocks away in North Beach is E Tutti Qua. Enzo, the owner of this fun and fabulous Italian eatery is always there with a smile and a big hug. Our server Martina was so nice and the food was authentic Italian. 
Even at checkout, Andrew was very gracious. From beginning to end an A+ for me. The Hilton Financial District should be your home base for a fun getaway or business in San Francisco. I will be back again and again.