I stayed at Marcus apartment for a month with my wife and our 6 months old baby. It was such a nice and cozy apartment with everything you could possibly need nearby. It is located in area Frogner which is a nice area itself with a lot of cafes and restaurants, and a five minute walk to the popular area Aker Brygge/tjuvholmen. Even though it is close to city center it was a very quiet neighborhood.
Marcus was easy to reach and very helpful with whatever we needed for our stay. He did everything that he could so our needs were met. In other words, a perfect host!
Would definitely stay in his apartment again.