I cannot recommend John & Tom's place highly enough. It's right in the centre of Oslo, and yet whisper quiet. You can walk to everything, or there is even a tram stop a minute down the street if you prefer. We didn't get to meet our hosts as they were away for the weekend, but instead enjoyed their massive and stylish apartment for ourselves. It was simple to pick up the keys from a nearby store, and we had every comfort we could have wanted - including Netflix on the ginormous TV! If you're going to Oslo, you'd be foolish not to stay with John & Tom.