Location is absolutely perfect. Amazing to find a flat in the middle of Stockholm’s old town that holds so many people! We were 7 (incl 2 couples) and it was fine, though a tight fit. Check-in details were sent same day so make sure you have wifi or cell service to get the door code. It was great to have a clothes washer (as other reviewers said, the dryer doesn’t work). The apartment was clean and charming, heaters worked well. The beds are definitely on the soft side.
The kitchen was spacious and well-stocked with cookware, and there is a Coop grocery super close by (but we preferred the fruit and veggie stand by the metro station; so fresh and delicious!). But be careful with the appliances; we tripped the breakers by using 2 appliances at once.
Overall a great stay and we felt very lucky to be able to find a great flat in a great location at a reasonable price. Would recommend.