I stayed at Line's flat with a group of friends. The flat was spacious and clean, so it suited us well! The flat is quite well-located just a walking distance from a nice neighborhood Grünerlokka, where there are a lot of nice cafes and restaurants.
Communication with Line was easy! Her friend waited us in the flat when we arrived and checking out was flexible. When we arrived there weren't enough beds in the flat and one person had to sleep on the sofa which was too small for an adult but when I asked Line about the bed she immediately promised to take care of it and she did. I can recommend Line's flat!