It was nice and comfortable to stay at Gunnar's place. I have spent there three nights during the week, so the host was pretty busy, thou Gunnar found time to help me with getting known to the suroundings.
Apartment is located just 3 min away from the metro station (10 min to the centre) or alternatively you can take a 40 min walk to the Sentral Station. The room itself is spacious and convenient, sofa is big enought even for two. Grocery store is in the same building, shopping centre on the another side of the road. And in general it definately was comfortable staying there while travelling to Oslo.
So hey Gunnar, thank you for your hospitality!