Stayed for three months at Ulrikes place: It's located a little bit outside of Stockholm, but you can reach downtown within 20 minutes by tunnelbana (subway). The area is quiet and you can walk to the lake nearby in 10 minutes.
Ulrike is a very friendly host and knows the city of Stockholm quite well. If you got any questions, you could always come up to her and she gladly gave advice. She also provides guests with lots of information about the most common places in the city.
The room has a douplebed, a small table + chair and big wardrope (very good if you bring lots of cloths). Room is bright, because two big windows, but in total not very huge (~10-12 m2).
Kitchen includes everything you need to cook. Basic stuff (salt, pepper,etc.) is shared. Bathroom was a little bit old, but will renovated in June/July 2015. When I was there was only one shower (had no problem with sharing the shower altough sometimes more than 6 or 7 peopled stayed at the house), but in the new bathroom there will be a second one.