Heart of the City!
Very conveniently situated for Union Square and the cable cars. Reasonably priced and we found it very clean and welcoming. Our room was lovely, nice bathroom, comfy bed. No noise from outside even though it is in the centre of the City. We stayed 3 nights and had no complaints, the room was cleaned every day and there was plenty of coffee for the machine in the room.
Would definitely stay here again - yes it is an older hotel but it was perfect for what we needed and wanted.
Clean, comfortable, reasonable - what else do you need?!