Everything was great. The location is perfect (close to the subway with only three or four stops to the city center, lots of supermarkets and good restaurants in the area) and the apartment itself is comfortable and quiet. Olga was really nice and there were no problems with the check in and check out. However, it might be good to know that the parking mentioned in the ad refers to the public parking on the street. You have to pay for it between 9:00 and 17:00 (i think it was around 12 SEK per hour) and in the night from Thursdays to Fridays you need to move the car, as the street is being cleaning.
We were really happy to have found this apartment four our short stay in the city.