We had a wonderful time at Daniel's place. It's located nearby the metro station Rossio and is near a public elevator, so no need to use the stairs too often.
We were taken by surprise by the welcome drinks - a bottle of wine and some water bottles, which at 11PM was like a gift from heaven.
The apartment has everything you could need (including wine opener :)) and the neighborhood is charming. Even though the apartment is on the ground floor, the windows have shades which completely block the view inside, but it could be a little noisy at times, especially in the morning. One thing to mention - the bathroom is very small, but it's ok for women/girls, or someone around 1.75-1.80.
Daniel was a great host, very accommodating, had wonderful recommendations for places to go visit or eat, and is beyond obvious that he cares about his guests.