We found this apartment to be very well located, central to most sites and close to the metro, train station and a 10 minutes walk to the Cascais surface train terminus. Below the apartment is a nice cafe with music on Sunday, Wednesday and Thursday. The sound creeps a little bit in the bedroom but the show ends before midnight.
The kitchen and bathroom are modern and functional. Please be aware that the hot water tank is small so short showers are recommended. I found the living room to be underwhelming with old couches and a TV from the 1980's. But we did spent much time indoor so it did not matter much. Internet speed was good in general. I would stay there again.