Helder is a great host(of course Rita too, even though we did not get a chance to meet her in person). He was willing to come to the apartment to help us with the washer problem(we caused the problem, not the washer itself has any problem) at a very late time of the day. I thought he might not be happy that we had to bother him that late and he might not have a pleasant face. But no, he still had a very nice smile on his face when he came and did not make us feel uncomfortable or embarrassed. You definitely want to have a host like that especially when you come into problem.
The apartment is super clean and comfortable. When we made the booking, we were a little worried if the street noise would bother us for sleeping. So we brought ear plugs just in case. But once we closed the windows, we can barely hear any street noise at all. I did not need to use the ear plugs. Actually both my husband and I really enjoy listening to the street sound background of the Lisbon city.
Location is super convenient. 2 mins walking from metro(we took the metro from airport, only 1.4 Euros, cheap and fast), 2 mins walking from train station(to Sintra), 2 mins walking to Placa de Figueria, 10 mins walking to Chiado/Baixa, 20 mins walking to Alfama,. Many restaurants just right down the street. I don't know where you can get more convenient than this place.
Book it and you will enjoy it.
P.S. - They have a couple custard tart and fruit to welcome you on your arrival, perfect after a flight ride.