I stayed at the Signalfabriken last year for 5 nights. It's about 25-30 minutes from center of town on subway. Pretty much a straight shot. Hotel is more in a neighborhood, maybe 100m walk from the subway entrance. There's also a light rail train that goes right by the hotel. Grocery store across the street, quite a few restaurants within walking distance. 600m from a ton of trails on the waterfront that were great for going for a run. Close to the Bromma airport if you are looking for intercity flights in Sweden. Breakfast is similar to what was written above. Pretty good but same every day.