Christoffer is an amazing host - he gave us detailed instructions about everything we could possibly think of - a map with very clear explanations where to park our car, a list of things to do in Oslo with very useful special list for activities for children that we asked him for; list of restaurants; he was really nice and generous and I could only be sorry that we didn't meet in person. His apartment is a great deal as quality/price ratio, the only thing is that the noise from the traffic in the streets is quite loud. Otherwise the place is very clean and cosy and I highly recommend it.