Herman's
FjÀllgatan 23B, Stockholm, Stockholm
100% positive
Directions: In the front entrance, up the short set of stairs, through the double doors with glass windows, a little ways down the hallway to the left. The doorway is on the right and has a small common waiting area and 3 individual stalls.
Comments: You could use it without being a customer, it seems like a common restroom for the building which contains a few businesses/ apartments.