Don't forget to mention the racism that is getting bigger and bigger here in sweden. I am a native swede my self and i know how we talk and think. The swedish democrats are real proof of how the whole population is starting to show its true face.
If you are white sweden will be great, but if you are anything other than white you will be in a quite cold hell where people do not like you.
I think the reason why it is hard to get native friends is that many swedes truly are racist. I am a native swede my self and i know how swedes talk to each other when alone, and the rise of the swedish democrats is also a big proof of the racism(that also is getting bigger) in sweden.
Its not impossible tho and the racism here is more similar to the one in japan, its not visible on the surface but you will never be a part of the community. But! there is good people everywhere you go, you just need to look for them.
If you are white sweden will be great, but if you are anything other than white you will be in a quite cold hell where people do not like you.