We really enjoyed our stay in Daniel's apartment. The apartment is really spacious and well equiped with basic stuff which was really convenient for our stay.
Even if the weather was hot the fan in the bedroom was great for us to refresh a little bit at night.
The view from the terrace on the old city of Lisbon and the castle is also very nice. We usually had breakfast there in the morning.
Finally, Daniel and Liam were really present during all our stay (welcoming us a the metro station, letting us leave our luggages to a safe place to enjoy our last day, giving us advices for visits...).
In a nutshell, Definitily a place to go.