The whole place was excellent - the amenities, spacious living room, lovely garden, pool (I even took a chilly November dive), location, etc.
A minor shortcoming was the noise that sometimes traveled through the floors. That's because Ana and her family lived on the second floor, but from another angle - as they were so close, whenever we needed something, help arrived in 5 min :)
Nearest store & cafeteria - 1min on foot.
Seaside, gym, restaurants - 10-15min on foot.
Centre of Cascais - ca 15-20 min on foot (we took a bus/taxi)
All in all, it was a great experience, we enjoyed our stay in Cascais, and most importantly - Ana and her husband were great hosts!