We had a 4 night break here and the location was perfect for us and anyone who wants to explore Copenhagen centre. Nyhaven is beautiful with vibrant street cafes and restaurants and you are literally a few minutes stroll from both the shops and the Metro. The apartment itself is very spacious and comfortable with all the listed amenities. The Wifi is very good and the hosts were brilliant with their communications both before our stay and during it if we needed any help.
Things to be aware of are that, if you're staying over a weekend, there is live music from the restaurant below that doesn't start until 10am and goes on into the early hours, particularly on the Friday night. Of course if live music is your thing this could make it even more perfect for you. As advertised the apartment is on the second floor. The steps are quite steep but we are both in our mid 60's and had no issue with them but if you have lots of baggage you will just need to take your time.
A great spot!!!!!