The apartment is nicely furnished and in a great location if you want to visit both the northern and southern parts of Stockholm because it is in the very middle. The neighborhood is quite noisy, because there are lots of restaurants and bars. They close pretty early but there were unrespectful tourists screaming and we woke up a few times in the middle of the night.
Overall the apartment was not as clean as we expected. The main problem is the mess you find in every cabinet or closet. Since we were staying there for a week, we wanted to empty our luggages but we couldn't because the closet was quite dirty (hair, dirty cleaning supplies, piece of packaging...). If you stay just for a couple of nights is totally fine though.