This is a great location for 1-2 travelers that wish to explore the North Park area of SD. It is a 10 min walk to 30th, which is the main drag for bars, breweries and restaurants. There are great local places to grab food within minutes of the address.
The room itself is about the same sq ft as a 2 queen hotel room + bathroom. The bathroom is quite small, but manageable for most people. Also remember that there is a shared wall to the main house - but unless you were playing loud music on a speaker I don't think you would be disturbing the hosts. There is a mini-refrigerator that can hold beer / water, microwave and fast internet. No TV, so bring your laptop/tablet.
I would recommend this place for those wanting a weekend get-away in SD but want to avoid the the downtown area.