David's apartment is amazing, very comfortable, clean, well-equipied, cozy, and spatially well-thought. The neighborhood is also one of the most exciting from Lisbon, mixing cool bars and restaurants with old architecture and beautiful streets. The view to the river you can have from any of the near terraces is wonderful.
With David everything went well. He helped us first to organize our arrival, waited for us in the apartment with great suggestions and a map, and was always available via whatsapp during our stay when wee needed to ask him something. One great recommendation was going to Zapata, a fantastic restaurant just 3 blocks away,
I completely recommend David's place, either to stay a couple of days or much longer periods.