We stayed at Marlene's place for a week in July. The apartment is better than in the pictures, spacious, comfortable and very well equipped for a longer stay.
The walk to the beach is 6-8 minutes, it's a 6-8 minutes walk to the train station as well. The nearest supermarket is in ca. 4 minutes.
The nearby beach is small but cozy, and comfortable for swimming.
The train takes you directly to Lisbon and goes until around 1:30 AM, so it's easy to spend an evening in Lisbon and get back by train. Train tracks go close to the apartment, but it wasn't much noisy at all.
If you travel by car, parking is available and many nice places are a short drive away, like Capo da Roca.
We've enjoyed staying in Marlene's apartment and would love to come back some day.