Desirés Appartment is sweet and unique in the middle of the city, next to the canal and the opera and very close to the metro.
The pictures don't do it justice, because it's really charming and cozy. The well known Copenhagen bathroom problem is well solved by a combined shower/sink. For a couple or a person alone an ideal place from where to explore the city. Also: it has two entrances from one you have an easy access to the terrace, which is great for smokers.