This flat is very nice, clean and in a great location (10 minutes' walk from the central station and 5-10 minutes' walk from shops, cafes and the metro).
It is a little small, but there were four of us staying for a long weekend and it worked out absolutely fine. It was also well-stocked with toiletries, towels, linen, kitchen appliances etc.
Isabella was a very friendly and helpful host, and I would certainly recommend this flat to anyone staying in Stockholm. I would definitely be happy to stay here again if / when I come back!