From Arlanda Airport you can take the airportcouch to Central staion (about an hour ride), then take the blue line towards Akalla, after 13 minutes get off in Hallonbergen, the closest subwaystation of the rental. Then there is a 9 minutes walk to the appartment. There is affordable parking in the garage should you come with car. For those not conserned with the budget off course you can also take Arlanda express and be at Stockholm central station in 20 minutes. After that you could reach the appartment in estimately another 20 minutes.