Lene's apartment is absolutely fantastic, one of the most beautiful and well kept places my boyfriend and I stayed in during our time in Copenhagen. It's the 5th floor in a building that is very central. The 5A bus drops you off from the central station to her place, and also takes you to the airport, so that is super convenient. Though you can easily walk to/from the central station as well.
It's a very cosy apartment, a place you don't want to leave once you make yourself at home. Highly recommend Lene and her place.