Oliver and Lars have a beautiful apartment right next to the central train station. It is in THE best location. We walked everywhere (even though we were Aussies dealing with -6 degrees)! Oliver and Lars are very friendly and accomodating. Would recommend for the comfortable room and great location. Note that if you stay you won't have access to kitchen facilities and given that Copenhagen is expensive it might be good to have the option of eating breakfast at home, but overall it was not a problem for us.