We (2 adults / kids 4/6) had a great time at Karin's townhouse. The house itself is lovelyly decorated, very cosy and spacious - perfect for a family of up to 4 kids. A big bonus for us was the boardgames and some toys that made our kids really happy. Kitchen works well, nice slack in the couch. Only thing to note is that to use the advertised fireplace you need to buy firewood, which was not too easy to find so we ended up not using it at all.
The location is a great trade-off for exploring Stockholm; the area has a suburban peaceful feeling and the price is lower than inner-town apartments, while you still have Gamla Stan and Södermalm within easy reach (15-20 min "door to door"; Stureby metro station is 3 mins away). This worked out great for us, free streetparking also makes a big difference compared to central Stockholm.
All communication with Karin went really well and she welcomed us and showed us the house herself.
Thanks for hosting us Karin :)