We felt completely at home and very comfortable at Paulo's apartment, where my family spent there the harshest days of lockdown in Portugal.
The place is ample and cozy. It is right next to bustling Avenida de Roma and all the commerce yet it is very peaceful and sun drenched (look out for the Fernando Pessa park, tucked behind some buildings).
The location is very convenient, you have everything you need around but if you don't feel like walking there is everything a few steps away — three subway lines and a train stop, plus buses, public bikes and electric scooters. All the attractions in Lisbon seems to be 20 minutes away at most (not to mention the airport is just 5 minutes from the apartment).
We vividly recommend this place if you want to have a "Lisboeta" experience with your family.