We stayed for 8 nights and it was perfect for 3 of us, so we can explore Stockholm at slow pace. We even saw some royalty going to the church next to the apartment just below our windows (a concert, I presume, the street was closed for 3 hours). I recommend to go to Ahlens City for the grocery shopping/alcohol( systembolaget) as it's just one metro station away. The church bells were very soothing.