Luis place felt like home! Nice to come back to after the business of the touristy neighbourhoods. The apartment is in a quiet residential neighbourhood, easy to get to by metro from the airport. My suggestion, get a viva viagem card at the airport metro station. It can be loaded with money and you can take the metro, tram, bus and some ferries...just tap in, tap out. The apartment is on walking or metro + walking distance to the tourist districts and easy walking distance to the hop on, hop off buss stop #1.
Luis is adorable, although we did not meet in person I could feel it through the messages. He responds to messages faster than you can blink an eye!