Mathiaes's place is right in the heart of the city and incredibly easy to get to from the airport. Being in the middle of things, there is some noise from people at night but we slept right through it and Mathiaes does supply ear plugs if needed. It's very well stocked, clean and comfortable and so stylish!
We had a very late flight leaving Copenhagen and Mathiaes very kindly let us leave our things in the flat and essentially check out quite late since he didn't have any guests arriving that night. It made all the difference to our stay and was incredibly nice / hospitable.
Would definitely recommend!