The are of the apartment is located in a well-known development area of Aarhus (Isbjerget) Some places are still under construction and from time to time it can be very noisy. Nevertheless I had a good sleep all the time. The apartment was clean, but this also depends primarily on yourself and the peoples living there together at the time of your stay.
The distance from the apartment to the center of the city can be walked easily, but a bike is always recommendable. (As I was informed by my room mates it is possible to rent one) The closest supermarket is well-assorted and takes only a 10 minutes walk.
Although this area is very safe, it might be advisable to walk not alone at night as long the area is under construction, but I think it will be finished in the very near future.
In general a very nice place and city for architecture and art lovers, I can really recommend to stay here. It is a young and developing area where you will always find something to explore or a place to be in silence.
My stay was very relaxing and I look forward to come back in the future :)