I stayed for 9 nights w/o renting a car. Taxi is to be booked in advance: sedan €51, minivan €58 including road fees. Occasional airport taxi-guy charged me €76.
The location is perfect. There are picturesque jogging trails in both directions. 20-30 min walk to the Center of Ericeira and Praia dos Pescadores, where you can find a good court for beach-volley and tennis-coirts upstairs. Surf spots are 10-15 min walk and you can check the waves in Ribeira from the balcony. 3 min to a bus stop - 20 min to Foz do Lizandro with your board for €1.
The appartment is on the 2nd floor w/o elevator. Consider this if you plan to break a leg or bring a 7.6/8/9 board. You get the best room with a big balcony. The sound and fume isolation is ok, when all doors are closed. The sunset and the noise of the ocean are breathtaking. I used additional light for reading. All is clean. The kitchen is a bit crowded. The WiFi is perfect.
The host is also perfect and caring. Oli speaks en/de/sp/pt. He was managing the stay since it was booked. When the fin was broken, I got it fixed in less than an hour. If you are a party person - that's the right place to come. I am not, anyway it was an absolutely enjoyable stay.