I want to thank Lidia, nice woman always kind and ready to give you all suggestions and information you need.
lidia's place is connected to central station by train (only one stop) and by metro as well (by metro you can reach all Stockholm areas) The apartment is near the metro stations too.
If you love to walk you can also reach by feet the old city center and from there you can walk towards other districts.
Lidia offers you a cup of coffe or a cup of tea in the morning and she always greets you with a smile!
Recommended.
Giulia