I couldn't give you a best advice than staying at Nina's place. Her appartment is wonderful, super cozy, and it's a real pleasure to come back here after a long day of walking to discover Copenhagen. The bus & metro stops are close, as different supermarkets. But it's also ok to go there by walking !
Nina is an awesome host, even if we didn't meet her in real life, everything was organized perfectly before we got there. She is really fast to reply and make sure you have everything you need. I fully recommand !!