We stayed four almost perfect nights at Jorge's and Manuel's apartment. The communication was flawless, Manuel was there to greet us on arrival and gave us some recommendations on what to see and where to go. The apartment was in a very good and modern condition. There were even some food and beverages in the freezer for us! We felt very comfy. Everything we wanted to see in Lisbon was in a good walking distance and easy to reach. Plus, public transport (metro, tram, bus) is nearby.
Early check-in was possible, and Manuel even stored our luggage on our last day four a couple of hours until we had to go to the airport.
The only thing we weren't so happy about was the bathroom as it has no window and no working exhausting system. The humidity stayed almost the whole day in it, for example after taking a shower in the morning even in the evening the mirror still would be wet. The result was a bad smell which Manuel (very fast and helpful!) tried to get rid off once we told him about it, but it came back after two days.
In conclusion, I can definitely recommend to stay at this apartment. It is cosy, has everything you need for a couple of beautiful days in the fantastic city of Lisbon.