How do you get around Stockholm? How is it coming and going from the airport? These questions are answered in Vlogs on the prospective student at KI youtube page.
I have found the metro, train, bus and boat system in Stockholm to be one of the best of all the places I have lived, particularly for traveling such long distances and it is very punctual and clean. I have not experienced it yet however, but I have heard of the nightmare which occurs during winter whereby everything stands still due to snow and ice, this experience I will hopefully not need to blog about but this winter has yet to arrive!