Telmo and Diogo where wonderful hoist.... They where very friendly and gracious... staying very late to meet us when we arrived very late.... and then checking with us the next day to make some further arrangements... They shared interesting information about local history, etc...
The flat is very centrally located... walking distance to center tourist areas... we had a little trouble finding it our first night... so ask for directions and help...
In Sintra, we especially enjoyed the nature trail hike up to the highest ramparts and palace atop the neat by hill... the verity on of plants, on the hike, was astonishing....
If you stay in the lower, ground floor flat... keep the windows open to allow air to move... it can get humid..