We only stayed 1 night in Joyce's apartment and I can recommend this place for a short stay.
We did not use the kitchen, only the kettle. It would have been more comfortable if there was a small table and mirror in the room. The walls are very thin and if you want to go to bed earlier or get up later than the rest of the house, you may be disturbed by the surrounding noise.
The neighborhood is very nice and the subway is quite close (and you can hear the sounds of trains in the room). I recommend visiting Skogskyrkogården cemetery, which is a 25-minute walk away. It is a very beautiful place.
Generally, rental prices in Stockholm are overpriced, so Joyce's offer was the most suitable for us. But I'm not sure I'd want to go back there again. It's nothing personal.