This is a fairly small but functional and fully equipped place. The location is great but keep in mind it's not very quiet, we could hear neighbor's kids crying/yelling at night, people talking past midnight and it was otherwise pretty busy in general, also due to the building being pretty old, which is quite common in Lisbon overall. On the other hand there are tons of bars, restaurants and public transportation nearby, so if you don't mind the potentially noisy neighbors, its a great place.
I liked that it had a desk for working by the window. All the rooms are quite small but for 2 people staying for a week it was good enough. WiFi was great and fast, but it did go down during one afternoon. Apparently the internet provider was having issues.
The host was friendly and responsive. The place was clean and well equipped. Overall recommended if you don't mind the caveats mentioned above.