We had a great time at Joao's flat and would recommend it for others. Lisbon is beautiful (obviously), and then there are places like Sintra within reach. Communication from Joao was good, and there were no problems with "check-in". His mother was there to let us in, and arrived again just as we were leaving. As others have said the flat is on the 4th floor, with no lift. It's a bit of a haul with baggage so just be aware of that. It wasn't a problem for us but we are fairly fit. There is a knack to the front door lock into the block but you get the hang of it (the key has to be 1-2mm back from full insertion). The flat itself is very comfortable for a couple, and the balcony is great. It's a very nice place to sit out and eat/drink with fab views. The kitchen facilities are good - though we didn't really cook. The main bed is up on a mezzanine floor - short but steep stairs. Good shower. Wi-fi works - though the log-in has changed compared to what's on the website (May 2019). The property is in a fairly non-touristy part of town next to a small park with loads of ducks, and bizarrely a colony of roosters (which you do hear in the early hours if you've got windows open!!). There are some good restaurants within reach. We particularly liked Zé da Mouraria-2 (short walk - big portions meant for 2, but also a good taster menu option), and Solar 31 (a bit further and down a hill - but great octopus). You are right next to a decent sized supermarket as well. Transport links are OK - 2 buses go by the flat, the nearest metro is about 5 mins away. It's just about walkable down to Placa da Figuera etc but harder work back up (you can find a route which allows you to use a quaint funicular at certain times of day). A Viva Viagem card is worth getting - easy to top-up e.g. in metro stations. Uber is pretty good value if all else fails and NB is remarkably cheap to the airport (7-8 Euros for Uber-X for 2 plus bags ... minus tip).