I stayed in Lisbon for 3 days with some of my friends and we really enjoyed our time with this apartment. It is really beautiful, clean, and well-located (about 5 minutes by walking from the train station and 10-15 minutes from the center). The hosts are really welcoming and flexible and even left us some food in the fridge as well as delicious cheese and wine at our arrival! They also showed us all the places to visit and how to reach them, with quite useful tips.
I definitely recommend this apartment!