We loved staying at Kristina's. It is superbly well-located for travel on the bus and metro; line 5C runs right in front of the flat and is a major connection to most of the sights we wanted to visit. The flat is also close to restaurants and take-out, including the Torvehallern, and within walking distance of a nice park (which is also a cemetery) and the Lakes.
The flat is light and airy, the beds comfortable, the kitchen well-appointed. We had everything we needed for a week's stay.
Kristina is a good communicator. Although she was out of town for a portion of our stay, we could reach her at any time.