We didn't meet Frida but she texted us back very quickly every time we wrote to her for some information.
The apartment (one room) is nice, it's near the center and you can reach it by public transport.
We didn't find any depliants of the city, which would have been very useful since we have been in Stockholm only 2 days.
For those who come by car, be careful where you park because the street signs is not very clear in the little square near Frida's apartment and we took a fine ticket on Sunday morning!