As the listing says you will definitely get a friendly welcome! We had to change our arrival time (twice) last minute and Silvia was very understanding, she stayed in close contact with us, and met us outside when we arrived. She showed us where to park and then we shared a bottle of wine and she told us all about Sintra and made lots of wonderful suggestions for what to do and see and where to eat. Her cat was so adorable and my husband and I felt right at home at her place.
We did a jeep tour the next day (I would highly recommend as an excursion in Sintra) and the meeting place was at the train station that is a 2 minute walk from Silvia's place which was perfect. Also great if you are arriving by train.
I foolishly didn't bring a power adapter so couldn't charge my computer and Silvia was kind enough to lend me the plug part of her computer charger so that I could use my computer. She is a really giving and wonderful person and will make you feel right at home.