Thierry is a first class super host! He can give you all the important information you need about Lisbon and is there within minutes if you have a question or text him! He recommended us a very good classic Portuguese restaurant right on the first day. It was super tasty!
The accommodation was perfectly fine for us as young people, three adults have to make do with a queen size bed and a sofa bed. The location is only a few minutes walk from the old town (Alfama), which is super nice to explore with its terraces structure. The nightlife district Barrio Alto can be reached in about 15 minutes on foot as well as almost all other important sights.
Our recommendation: We drove a lot with Uber, as it is cheaper in Lisbon than taking public transport.