100% recommendable !!!
I got answers from Antonio real quick, so the communication was pretty easy.
We traveled without a car, which was no problem, because you can take a bus to Ericeira and Antonio even picked us up from the bus.
The flat is not in the center of Ericeira, but you can walk there in 15 to 20 min. You can also walk to two beaches near the flat in 10-15 min (one of them is very good for surfing).
At our last night, we sat outside with Antonio for a few hours. We had some drinks and a good time.
He is a really nice and sympathetic person and we would come back, if we're going to Ericeira again !!!
Greets
Simon & Kathi