Our family truly enjoyed staying in Tobias' apartment. What makes it shine is its location, size and decor. It is situated in the middle of central Copenhagen. It is steps away from the canal in Nyhavn, and most tourist attractions are very walkable from there. The Metro subway (Kongens Nytorv) and waterbus as also very close. Although right by the very busy and active Nyhavn, the apartment is set back away from the street, so street noise is not audible (though that also means the windows open to internal courtyards and alley spaces - no views). We slept with the windows open without any problem.
Inside, the apartment looks exactly like the pictures. It is a large open-space apartment one floor up from the ground level, with desk, sofa, kitchen and dining table (for 4) in the common area. The bedroom is up a few steps from the common area, and has glass doors that can be closed for sound (but not visual) isolation. The king bed is very comfortable and nice. For our two teenage kids, the apartment had two cots, which were fine for them, but not nearly as comfortable as the bed. The decor is eclectic with fun books, pictures, and collectables adorning the space - really a fun place to stay. It is in an old historic building with both its charm (big doors and wooden beams), but note .
Tobias was easy to communicate with, and generally very responsive the check-in process, and otherwise can take a day or so to respond to messages. We did not, however, have any problems or reasons to contact him during our stay.