Marre and Sofia's place might look like it's far away from the center, but it's actually within a short walk and a couple of stops from Stockholm center. There is also a bus stop right downstairs.
There's a grocery store within a short walk, and the kitchen has whatever you need to cook your meals.
The sofa is big enough for someone to sleep on, but the room might be a bit bright in the morning if you're traveling in the summer. The bed in the bedroom is big and comfortable.