The flat was perfect : The apartment is equipped with all comforts, and really beautiful, modern, etc ! The neighbourhood is really nice > just 5 minutes (on foot) to be on the Alfama ! The hosts are very nice. They said to us what things to do in Lisbon, and how go there (transports, what eat, visits, etc...). Only "problem" : there is a train line just outside the apartment (if you're a good sleeper, you will sleep, but that could be difficult...).
All the rest was perfect ! Thank you !
Julie & Sylvain