As pointed out by other reviewers, this is owned/managed by a company. They apparently own several if not all of the apartments in the building. Nothing wrong in itself, just be aware there is no doorman or physical receptionist and that most of the communication will be mechanical and "corporate like." I will come back to that later.
Booked for two nights, Saturday and Sunday. Check in and check out are easy, the apartment(s) is / are well located and you can pretty much go anywhere walking in Copenhagen from there. The Tivoli is very close, there are supermarkets five minutes away, and other attractions (boat ride on the canals, Christiania, etc) are a 20-30 minute stroll away. The apartment is spotless and looks like one ready for you to come and live in. Everything works, there is a smart TV and the beds are comfortable. Note that if you go in the summer and there is a heatwave, the apartment does not have AC (that is disclosed in the the description).
Now to the bad part. We were initially on the fourth floor (on the left side) as per the reservation confirmation, but when we got to Copenhagen we got switched to the second floor (on the right side). The "new" apartment is supposed to be bigger than the one on the fourth floor, but without terrace, which is something I was looking forward to. I talked to someone from the corporation who convinced me to stay at this upgraded apartment because "it was better and bigger." Big mistake. Saturday night, we were in bed after a long day and at midnight we started hearing loud noises from the street and from the building next door. It turns out there is a disco/club called Mambo which is open Fridays and Saturdays until 5 AM, and is located directly under the bedroom we were given. We did not sleep at all Saturday night. I contacted the corporation at 2:30 AM but the manager on duty told me there was nothing he could do. The next morning, the daytime manager offered me to switch the apartment (which was not helpful since the club did not open on Sunday nights), gave me a free late check out (which I could not use since we were leaving at 8:30 AM on Monday), and someone left a cheap 5 dollar bottle of wine on the kitchen table "as a token of appreciation and apology for the trouble." All that is well, but when I suggested a fair, equitable, and reasonable partial refund for the sleepless night, I hit a wall and the corporate language started coming out. "Not our policy," "we don't offer refunds," "we already apologized," etc etc.
As I am writing, I feel deceived because the corporation KNEW about the club, but failed to DISCLOSE it to me. It is true they have no control on the noise created by the club and its partyers, but they KNEW that it was going to be noisy. That is not for everyone and it also has an impact on the value of the property. Had I known AHEAD of time, I would have rejected that "upgrade."
If you rent with this company, be sure it is clear what apartment you are renting so you do not end up fooled as I have been. Although the quality of the apartment was up to expectation, the company did very little to accommodate my reasonable request, and I feel as if the attention to the guest is low on their priority list once you have paid.