Great location! Nice and clean flat. Joao wasn't in Lisbon, but he sent us all the info to check in and check out. We didn't have any issues. He also sent us some info regarding restaurants and things to do.
The flat is at the 4th floor, with no lift.
The location is perfect. You can reach Baixa Chiado in 10 mins walking and Bairro Alto in 15/20 mins.
I definitely suggest Joao's flat!