Sónia's house is very nice, exactly like the pictures. It's on the fourth floor with elevator.
The only thing that I would say it's that it's on a hill, and the walk up it's hard to do, so if you're coming with someone old or not really used to walk I wouldn't recommend it.
I came with my mother and we had to take Uber to go back home almost every night, but Uber it's very cheap and the house it's in a very center position so I'll cost you about 3.50€ from Rossio square to home.
Sónia was great and she was very helpful.
We had a very wonderful week.