Really well located, fully equipped with everything you need, and hosts are very responsive. Small but good for one/two people, especially if you plan to be outside the entire day and mainly use the apartment to sleep/eat. Great if you want to walk around central Lisbon!
The biggest downside is the lack of insulation. You can hear everything from the apartment upstairs and unfortunately I wasn’t very lucky with my neighbours. I contacted the hosts about this but apart from sending a message there isn’t much that can be done in these cases as it’s down to the guests to be respectful of others.
But if you’re luck with your neighbours and noise doesn’t bother you then this could be a good place for you.