We loved staying at Aperon! The apartment was well-designed and fun to hang out in. In fact, we ended up doing a pleasant amount more of that than we expected. Simple, clean design, very comfy bed, nice to have spacious living and dining areas and a good kitchen - very good wifi and a tablet to check in/out and get info on weather and where to go and eat, nice touch.
The location can't be beat - the Round Tower is basically next door, and although we ended up walking everywhere, public transportation is easy too with Nørreport only one long block away. The courtyard is a friendly quiet haven; there is also a roof terrace; and we were so pleased to be able to leave our luggage in a locker before and after checking in/out. Climbing the stairs to the top floor was not our favorite part, but worth it.
All this and it was asparagus and rhubarb season too!