We had a great stay in the apartment. The location is absolutely fantastic, only two streets away from the marina and all the restaurants, bars and shops. The apartment itself is clean, very complete and has three bedrooms and two bathrooms. The kitchen and living room are very spacious.
I had to take a few conference calls for work and I didn't have to worry about flaky wifi at all.
The check in went very smoothly and Sofia was very friendly.
The communication overall was very friendly and I would definitely recommend staying here if you want a spacious apartment close to the city center of Cascais and only a 30 min drive from Lisbon.