An incredible place for relaxing and just decoupling from everything. Very nice walks around the place and you feel pretty much completely alone, while at the same time you have a little village around you. You also have everything you should need in the cottage.
We stayed for 3 nights and bought food for beforehand. We took an Uber, but since there are very few of these in Ericeira, the best thing would probably be to rent a car or similar. This is probably also the case if you want to stay more days.