Lovely apartment - very 'hygge' is how I think the Danish would describe it.
I stayed their with just my girlfriend, however it would easily accommodate 4. Good location next to the train station (15 mins to airport) and also not far from the centre of town. We hired bikes for the duration of our stay (Donkey Republic, recommended by Line) which were very useful and got us everywhere.
Take note of Line's recommendations for restaurants and cafes nearby, we only managed to try out a few but they were all great - Granola did an amazing breakfast and is in a nice part of town. We then followed on to Frederiksberg Have which is very picturesque.
All in all, we loved our stay, and would recommend Line's place to anyone visiting Copenhagen. Thank you Line!