Warning: looks like a referral id in the link to Harvest. As this is a self-posted link, I'm therefore suspicious, but everything else seems legit. Very little is Stockholm or Sweden specific.

Personally, I started an aktiebolag rather than an enskild firma because as a non-EU citizen (the author appears to be German) I thought and still think that it was easier that way to convince Migrationsverket (the Migration Board) to grant me the required residency permit.