Sophie's apt. is the perfect apt. - on one hand it's quiet and on the other hand it's THE best location! You guys are behind Nørreport station, close to all the shopping area and within a walking distance to all attractions, nightlife and restaurants.
You can rent a bike just next to the station and buy the Copenhagen card (recommended) at the close by 7 eleven grocery just behind ( Nørregade corner Nørre Voldgade).
Sophie herself was super- really flexible, informative when asked, easy going and she, with her touch, decorated her cute place beautifully. Just note that the apt. is on the 4th floor with no lift, so if you are not that sporty, consider. Otherwise, as stated above, it's amazing and I highly recommend it.