My friend Rachel and I stayed at Tine & Mario's house in August 2013. We found the location perfect for all our sightseeing needs as the house was next to a train station (which was two stops away from the city centre) near two main bus routes and a short walk to a trendy area of local bars and coffee shops (10 mins walk) and about a 30-40 minute walk into the town centre.
Every morning we woke up to a tray of Tine's freshly baked bread outside our room, along with a weather report and suggestions of what to do that day which was a lovely welcoming touch :) We also had all the tourist information, suggestions for what to do and maps in our room when we arrived, which saved us a lot of research! The room itself and beds were comfortable and we had our own fridge, dining area and wifi access. We felt very at home and though you were near the station there was no noise and it was very peaceful at night.
We had an amazing time in Copenhagen and I'd recommend staying at Tine and Mario's house to anyone who was thinking about visiting. In fact next time we go back to Copenhagen we'll be booking the room again.