Charlotte's place is situated in a really nice area of Copenhagen - and after visiting the city several times, I know what I am talking about. It is quiet, beautiful, close to the beach, pittoresque. If you get a rental bike you can move around the city easily and quickly. The room is small, but definitely enough for one person (plus, in CPH every room or appartment is kind of tiny).
Charlotte herself is a very nice, open person with a little daughter (Nora) and a very friendly black dog. Alas, I wasn't able to chat too much, because I was in CPH on a conference, but the few conversations we had, I felt really welcome.
Sorry for just disappearing - I had to be at my friend's house really early ;)
I would definitely stay there again, if Charlotte and Nora are willing to host me.