This apartment is great. I stayed here with 2 friends for 3 nights and we had a great time. It's in a fantastic location, easy to walk everywhere and very near Barrio Alto if you want a night out. There is a mini supermarket nearby, as well as plenty of cafes, restaurants and shops. The apartment itself was very clean, stylish, and had everything we needed. The terrace is lovely and it's really nice to be able to sit outside. It is a small apartment, and I think any more than 4 people staying would be quite cramped, but you can make do. The only thing to be aware of is that you have to walk up 2 steep flights of stairs to get to the apartment, as it is at the top of the building.
The hosts are really great, and stayed in communication throughout. They made check in easy and also checking out, we were able to leave our bags and collect them later on. Thank you to the hosts for a perfect stay in Lisbon! We would definitely come back here.