It’s a really spacious apartment with a great location- right in Nyhavn and walking distance to a lot of attractions and restaurants.
There were a few niggles during our stay - the flat was stifling hot in an unseasonably warm summer (I expect it would normally be fine), and the two bedrooms face the street so there was a fair bit of traffic noise. Nice decor but slightly lacking in amenities eg no bins, soap, shampoo.
But the location is unbeatable.