We have rented the apartment for a whole month, from mid-April to mid-May, and enjoyed every moment. It was like living at home away from home. In the beginning it was still relatively cold. But there were plenty of blankets and heaters to keep us warm. We came to see not only Lisbon but a lot more of Portugal, the north as well as the south. So we rented a car and took trips for a few days here and there, stayed away in some hotel but then returned back to base. It was a good model for a couple of retired people like us who don't want to pack and repack the entire suitcases when moving from place to place.