We had a wonderful stay at Nanna's place and would definitely recommend it.
Nanna was very easy to reach before our stay and was really helpful with directions as well as suggestions of places to eat nearby. When we arrived, she was equally friendly, gave us a quick tour of the flat and asked if there was anything we needed, before leaving us to it. Nanna had left us toothpaste, shampoo and conditioner as well as towels, which was very thoughtful.
The flat was spacious and well presented, with a nice sized bedroom and room for two on the balcony. Nanna had left a section of the wardrobe free for us to use, which was plenty.
Lastly, the flat is well located near Christianshavn, with a nice short stroll along the canal to get to the flat. There's a small supermarket two doors down, as well as two more "corner shops" and a pizza place at the end of the street. We decided to walk most of Copenhagen, but transport is easily accessible and it's only about 20 mins from the airport to Christianhavn on the metro.
All in all it was ideal for our stay and we really enjoyed it. We would recommend Nanna's place to anyone.