We stayed at Helena's apartment for 3 nights and it is in a great, quiet location with everything you need to enjoy Lisbon. Helena is very welcoming and was always available to answer any queries and suggest places to visit, restaurants and anything to help you enjoy your visit. The apartment is comfortable, very clean and everything is provided. There is a small shop right by the building entrance that sells bottled water and essentials or a supermarket 5 mins walk, for everything else. The centre of Lisbon is a 10 min walk downhill or you can get a bus close by.