Helena answered swiftly in every question I had. Communication was easy before and during our stay. The apartment is big enough for two people (friends or couple) and is located near the main railway station and other attractions. There are plenty of restaurants, bars and markets to choose from.
The area itself is safe night and day. I can recommend Helena and her apartment for anyone who wants to visit Stockholm. We didn't cook but you can make your own food at Helenas if that suits you better.
Thank you Helena!