A great base in a quiet part of the city centre, the area feels really safe as a solo female traveller. Really close to the lakes (which I'd recommend for a nice morning walk!), and the closest station Østerport is well connected to the whole metro network so getting around the city is pretty easy, even getting down to Amager and the airport is really straightforward.
Good communication from the host and the check in instructions were clear. It is in a big apartment block so it was very useful that the host provided pictures of each step, so you know you're going through the right gate/doors - I had no issues at all.
The flat is light and airy, clean, comfortable and has everything you need.