The location of the flat is just great, close to the very center and in the middle of a vivid but traditional district, just next to a "miraduro" with a nice view on the city and the river Tego, in a quite street. It is well equipped with everything you need when travelling (kitchenware, salt, pepper, oil, vinegar, coffee, thee, oven and microwave, iron, air dryer etc...).
Less positive points are that even though Lisbon is not that chilly in the middle of the winter (we were there for new year) and that there is a mobile (small) electrical heater in the flat, a second one would have been great for feeling really comfortable sometimes when t° drops. Also, there is no window in the kitchen (back of the flat), second room and (les relevant) bathroom. The frames of two bunk beds in the second room are quite noisy and instable also (Ikea quality...). Some bad smell in the kitchen furniture (humidity?) too. But these drawbacks are secondary to the advantages of the flat mentioned in terms of location and equipment.