There it is! an official invite! I only looked on the site and it looks quite busy, but I never really used it myself. Swedes, generally, are very hospitable. Having a local who knows the language and the hot spots, especially in the trendier parts of Stockholm is gold.
I'll concede that much, it is cold there. The best time would be summer in June/July when daylight is long and temperatures are higher. After years of living there, I wouldn't recommend a winter visit.
If that is true I would love to meet a hot one blond,brunette whatever. Some Swedish women who are mixed in other nationalites are so hot.