We stayed one week during last week of 2018 at Reguengo Grande. The village itself is not really of interest, and you will need a 20-25min drive to the first beaches. Obidos (really nice) is at about 40min, and Lisboa at about one hour. The house was very nice, old-style fashioned with everything needed, and nicely decorated. Wifi was working well. The only drawback for us was that we stayed with our 2-years old girl, and the house was not really adapted for that : basement has like a 2-3 meters "cave hole" which is nice to see, but not very easy to protect for babies; basement and main floor communicates with stairs not very safe also; and floor is not straight in the kitchen, which is not very easy for babies.
Apart from that (meaning : if you don't travel with walking babies), the house is really a good spot for visiting Lisboa, Nazare, Obidos, etc.. We recommend !