Cozy apartment with two rooms, kitchen and toilet/bath.
Bus 2A will take you to the city center. It passes both S-train stations, metro-stations and the main station. 20 min. to City Center, Tivoli and Main Station. Another 5 minute and you'll be in Christianshavn and Christiania.
I would recommend you to rent a bike if the weather allows biking - it always does :)