We really loved staying here! The location is ideal -- it's right next to San Fran's 'best' 24-hour diner and Union Square with shopping, also a short walk to Chinatown and a 30-min or so walk to Lombard St. and Fisherman's Wharf if you're feeling ambitious.
Check-in is very convenient (can come anytime as you would a hotel), and the staff was friendly.
The room is spacious, comfortable, sunny and comes with complimentary coffee, popcorn and hot chocolate! Great after a long walk around the city.
Would stay here again for sure!