In a nutshell, the apartment is in an ideal location, has all of the amenities you can desire, and is spacious by San Francisco standards, but needed some improvements upon arrival. We stayed for about 3 months, so we became very familiar with the apartment, neighborhood and management.
---Pros---
The apartment itself is as pictured - an upgraded, open kitchen, well proportioned bedroom, and a decent size living room. It was unclear from the pictures, but the bathroom is separate from the bedroom. The other people in the building are fairly quiet and friendly, and the lobby is updated.
The neighborhood is one of the greatest gems about this apartment. You have the financial district, china town, union sqaure, and nob hill all at your fingertips. Extremely walkable, with dozens of restaurants, bars, and the like nearby. We especially enjoyed Tunnel Top and the accessibility of having a market down the street, as well as Tacorea, Uncle Vito's, Beanstalk cafe, and Del Popolo. For bars, check out Hopwater, Pacific Cocktail Haven, and Pagan Idol.
---Cons---
Initially, the internet speed was only capable of sending/receiving email, but has since been upgraded and is now completely satisfactory; it took some time to fix but we got there. The apartment was clean at "the surface level" when we arrived; counters and the like were clean but the floors, walls, utensils, etc. were dirty. The bathroom is one area that could use improvement. The moisture from the shower is causing some mold to grow along the left hand side of the medicine cabinet. If you appreciate city living, you won't be bothered by the street noise at night.