it was definetely the best trip i've ever had! Kiana and Johan made everything perfect, so our stay (i was with my cousin there) was just great! they sent their friend Chiara to meet us on the station (which is nearly 8 min from stockholm centre on the train, that was great as well)
btw, their appartment is 2 min walk to the train station, and the buses are always at your disposal, so you can get everywhere from their house, and at any time.
the appartment was always clean and tidy, our hosts were like the second parents for us - they prepared everything for our breakfasts, and we had like 3 dinners, everytime something new! these people are really so friendly, they love to meet new people so much, they helped us with the city, provided with all types of maps, Kiana even gave me her camera, because mine was already dead, the guys borrowed us umbrellas, invited to spend time together and shared everything with us!
we have nothing to complain about, the city is now my favorite one, and i'm totally sure, that if i had the chance to visit Stockholm again, i'll stay with these hospatable people!