We really enjoyed our stay here! Great location in Gamla Stan, lovely historic building, stylish decor but still very comfortable, lots of windows for good light. Very well equipped, and it was luxurious to have a private sauna right in our bathroom. We appreciated how the hosts were extremely fast when responding to messages, usually within a few minutes, and were always very polite and helpful.
The only, downsides were minor. Tiny (but well equipped) kitchen had very little food prep/storage/counter space. The doorway into the living room is maybe 180 cm -- tall people be warned! But those trivial compared to all the excellent things about this flat.
Overall, a great stay, would recommend to others. Many thanks to the hosts!