Location, location, location. Aperon is at the heart of Copenhagen and within walking distance of many of the major sites in the city. Should you need to venture further to Frederiksborg, Kronborg, etc., the train/metro station is just a few mins away. I can't emphasize enough how convenient the location is.
The apartment hotel is clean and it feels very secure. The staff is highly responsive and it's great to have access to the free storage lockers, washing machines, and dryers in the basement. Check-in and check-out are a breeze.
If you are looking for a place to stay in Copenhagen, look no further. Just make a reservation at Aperon already! :)