We had a very very lovely stay!
Me and my boyfriend had a week to enjoy the flat and it was a joy. The location is perfect, you can easily reach the beach and the train station. The place is very light and didn't get to warm thou the day which is a very welcoming thing when you spend a longer time at the beach or in Cascais, which is only two train stops away. If you get tiered from the day you find some really cool English content on the tv. Also the living room area has a very cute little table where you can eat or play games together. All in one it was a very positive experience which I would recommend to everyone who is thinking about a chill trip to a not very touristic place. I think you could also take a day to visit Lisbon, but we didn't did that because it's a bit of a longer train ride and we spend the second half of our vacation in the city anyway. But if we didn't we would defiantly visit it at lest once...you know because you can definitely reach it easily from this place