Host is a nice and easy going guy. Really easy to communicate with and responds without any delay.
We used the aprtment mostly for sleeping and as a "base camp" for many trips. It worked perfectly. Underground parking was a huge advantage for us.
Connection to Lisbon is really convenient - less than 30mins by train. The station is 3 mins walking from the apartment. Some groceries and restaurants can be found in Parede center ~5-10mins. If it is 25th of December abd everything is closed there is BP station 800 meters away which can save your ass if you are not prepared for Christmans...
I recommend it.