Jim and his wife are wonderful, friendly people, and excellent hosts.
They were quickly responsive to my few requests.
The unit is a converted garage, and there are some discretely covered storage units occupying parts of the space but they are not obtrusive.
The unit is one main space plus a bathroom. It is a fairly large room and there is plenty of space for the bed, loveseat, full size refrigerator, desk and chair and two smaller tables that furnish it.
For my stay it had a single bed. If it were swapped out for a double or a queen the unit could accommodate a couple.
Plenty of street parking, but be aware of restrictions one day a week (Jim warned me and saved me an $80 ticket).
You have your own entrance, just walk up the driveway to the back yard.
The building is separate from the main house.
It was perfectly adequate for my needs. I will definitely stay there again.