This place has a great location! It is walking distance to many restaurants and attractions, right in the middle of Nob Hill. The cable car also stops right outside the apartment (which is convenient, though a bit noisy).
The correct stairs are a bit challenging to find - it is not the set right off of the sidewalk, but rather around back where the parking spaces are located. The neighbors can be a bit noisy (upstairs neighbor played house music until early morning) but if you bring a set of ear plugs it isnt a problem. The host also offers a car rental service if you need to borrow a car briefly, which is a nice feature.
The apartment is clean, the bed is comfortable, and the pictures are as advertised. I would say this place is a great value.