Sofia's place is perfectly located, close to everything and if you need to visit further away tourist places the subway is very closeby too.
Climbing up the stairs was ok even though you are not 20 years old ;)
The room is simple but clean and quiet and you can sleep well right in the middle of the Gothic quarter.
The bathroom is tiny but ok and not shared , which is good.
We were welcome by Sofia's mother who was very nice but we didn't get to meet Sofia .
All in all a nice stay!