Cool place to stay in Stockholm - is in the area known as Farsta Strand and is 20 minutes from the city center.. Easy transport - short walk to T-bana or Pendletag train or can take a bus (is only two bus stops to the train/tbana station). Would be even better in summer to use the lake, boats and bikes. Great running trails near cottage - in fact it is one of the best places to run in Stockholm at night. There are 8k of trails that are lighted, so you can run at night in the woods.
No terribly good for restaurants or sight-seeing but great for nature.