We booked based on the good reviews, however left feeling a bit disappointed with our stay.
The curtain is essentially a white sheet that doesn't completely cover the window, which meant a fairly poor sleep.
It was also very warm when we went, meaning we had to sleep with the window open. The flat is above a main road so I would advise bringing ear buds. It is a busy area and at the weekend a lot of people were outside drinking/shouting until late.
We were a bit frustrated when arriving back at 9pm to find the music blaring, and although it got quieter, the walls are very thin and I had to message Karina at 11pm to turn it down as we wanted to sleep. We got the feeling of not being wanted there, very rarely got any eye contact and we didn't want to be in the flat for any longer than necessary, (maybe we got unlucky as all other reviews are really good).
Good points - nice park/lake area, a good bakery and shops nearby. Very easy to get there/ into central Copenhagen via bus. Cat's and flat were cute!