We had an excellent stay at Paulo's apartment. The entire process was seamless and Paulo is very quick replying to any questions.
We were checked in by his lovely mother, who gave us lots of great tips for what to do nearby (I am Portuguese and I still learned some new things to do from Paulo's mother!)
The apartment is very comfortable, spacious and had everything we needed for our stay.
I highly recommend Paulo's place if you are looking for a comfortable, well located place. All the main access roads to Lisbon and Cascais are located conveniently near to the apartment.