The apartment is great for a short city stay. I would recommend it if you just need a place to sleep and not much else. It's small, so maybe a bit crowded if you stay with four people, but for one or two it's comfortable enough. There's no air conditioning and the apartment does get quite humid and warm. It's in a central, albeit a bit of a dodgy neighbourhood, so you can walk to lots of Lisbon's hotspots. It has a fully equipped kitchen and a small bathroom with a nice shower.