Location location location.
Ani's place is central to everything (a 30 minute walk to the farthest typical tourist destination I can think of, with most things being within 10 minutes). It is very clean, well-designed, and up to date, with things such as a great sound system and smart lighting. The place is optimal for a family with children, but my family of four adults was perfectly comfortable during our long weekend at Ani's place.
Would recommend and would stay here again if ever in Copenhagen.