My husband and I stayed here for four nights and absolutely loved it! The BART was only a 10-15 minute walk, but there were also several bus lines withing a one-block distance that were perfect for most locations.
I would definitely recommend this for a single or couple who plan to be on the move most of the time - other than the bed there wasn't much soft space for lounging. Taller people might find the shower to be a bit of a squeeze as well.
Definitely take advantage of the list of recommendations they put together. We ate at several and were very impressed! If you prefer to eat in, the kitchen was very well stocked with staples and cookware, and the shared courtyard is a great place to sit and enjoy the outdoors.