The place is well located near Belen tower, and the parking lot is very convenient (but pay extra attention to the two way road that leads to the apartment because it is very, very narrow). There is only a flight of stairs to reach the apartment. A lift is not really necessary unless there are disabled persons but it would really be useful if you have heavy luggage with you.
The flat is nice - especially the mansard that is worth the price alone - even if the arrangement of the spaces is a bit weird. A long, narrow passage leads to the kitchen, on the other side of the apartment there is a small dining room, a bedroom and the bathroom. Another flight of stairs leads to the mansard, where there is a studio, a double bed, a sofa... this is the best space of the flat for sure, shame you have to climb up those high steps every time you need to use the bathroom or when you need to get a glass of water.
All in all the flat was ok, but I would have expected more from a "Plus" apartment. All that said, the price was very reasonable and I would probably rent this flat again when in Lisbon.
The host was kind, always available and extremely helpful.