We have stayed in William's and Sofia's apartment four nights and everything went smooth, with no complications. I truly recommend this flat as it has a size just big enough for a couple. Clean and sweet, hidden in old town Gamla stan which is both romantic to stay in and the location is super convenient if you want to explore central Stockholm. We barely needed public transportation.
We will definitely like to stay here again, if visiting Stockholm. William and Sofia, thank you for the stay and cool tips for interesting places to visit in your guide !