I don’t think u can find a better location in Stockholm than this. It is in the heart of the Old City (Gamla stan) and the windows face the main walking street. The apartment is very modern and spacious. WiFi connection is great and the place was very clean.
Keep in mind that this is a pedestrian area. U can’t drive to the building and u can’t park there. The host pointed me to a parking option (Södra Mälarstranden) that was acceptably priced for Stockholm. It was about 15-minute walk from the flat, which was OK for us.
If there is anything I would suggest for improvement , it would be to add some closet space. We stayed 4 nights so it wasn’t much of an issue but for longer stay some closets would be needed.
We strongly recommend this place.