This is a basic room - clean, functional but "no frills" which is exactly what I was looking for. Location is excellent if you want to be in Union Square. The Hotel where the room is located is old but very typical of San Francisco pre-modern era. The only one less than great comment is the walls are paper-thin and the noise from other rooms/apartments is unavoidable.
Overall, the return on the price paid was excellent and it exceeded my expectations for a low-budget, clean, safe hotel room for a 3-day business trip!