Elsa and Rui's little apartment in Lisbon is lovely! It's located very close to the city center, with some amazing view points just around the corner, perfect to watch the sunset.
Elsa and Rui are very friendly and very easy to reach out to. They even offered help with some tips of what to see in Lisbon and of nearby restaurants.
The apartment itself is quite small, just enough for 3 people. It's clean and bright, though the windows don't offer too much fresh air. Bathroom and kitchen have all the essentials and more.
I'd definitely recommend staying in this apartment if you're exploring Lisbon for a couple of days, you won't find a better deal. :)