We had a great stay in Kurt and Abby's place. The photos accurately represent what you'll see in the apartment. There are also tons of books all over the apartment and if you like to read, you'll have lots of choices. There are three TV sets around the apartment. One is in the master's bedroom, another in the basement bedroom and another in the sort of TV room in the second floor. Abby was lightning fast in responding to questions, even during new year's day!
You will be staying in a space that someone is living in, so it's not a completely empty hotel space. There are some advantages to this, because you're staying in an actual home, and there is lots of shampoo, conditioner, body wash, butter in the fridge, etc. However, some disadvantages are that it's going to be a bit tight for your own stuff. For example, it would be lovely to have some closet space to hang clothes during the stay. The place is very clean though, so that's a huge plus.
There are lots of places to see nearby like the Grace Cathedral, Coffee Movement where they make great coffee, City Lights Bookstore, Chinatown, and the Fisherman's Wharf and Pier 39 is about a 30 minute slow walk. I developed plantar fasciitis from all the walking though, and it at that time, it wasn't much fun going up and down the stairs in the apartment. :( But there are good handrails and things to grab onto while going up and down the stairs.
Lastly, it was cold when we stayed over, and the heater worked perfectly. There was a toaster oven!
I would love to stay in the same place in my next visit to San Francisco!