A decent hotel with friendly service and everything you'd expect from a 3 star hotel, including Wifi and a decent breakfast buffet. The location is not exactly central but easy to get to from the airport, the airport shuttle (Flygbuss) stops right outside. My only criticism would be that the hotel seems to be minimalistic even by Scandinavian standards. My room was small with high a high ceiling, featuring a small desk, a small TV and a small bed - after a few days I was beginning to feel slightly claustrophobic. The hallways were basically concrete corridors with the odd bit of decoration - some may like the postmodern minimalistic design, for me it had something of a post apocalyptic nuclear shelter. I did actually have a pleasant stay but nonetheless, I have decided to try another place for my next trip to Stockholm.

Very nice hotel, big room, very clean, good breakfast. Big and confortable beds. Probably I'll choose again Norrtull Hotel.
Bus station from Arlanda airport just in front of the hotel, very confortable ( ~ 35 minutes from airport to the hotel).

Stayed here a short night, but although small the room was nice and modern with big tv, and good and wide bed. Bathroom was clean and nice as well. Nothing extraordinary but good value at the 970 sek I paid