Let me preface this by saying I’m a public transit junkie. I love to figure out transportation options in every new city I visit, be it metro, tram, bus, ferry, you name it. I very rarely ever resort to Uber or taxi to get around with one exception....to and from Lisbon airport. Taxis are cheap in Lisbon. I was there in January. The taxi ride from the airport to Inspira Santa Marta hotel (about 10 blocks south of Marques de Pombal) was less than 10 euros. To get from the airport to Marques de Pombal on the metro is very doable but you will have to transfer from the red line to either the blue or yellow line. Coming off jet lag and with luggage this can be a pain. Splash out for the incredibly cheap taxi ride to and from Lisbon airport and remind yourself it’s less than the cost of most European public transit options to airports like Heathrow, Malpensa, Charles de Gaulle, etc for a single person by comparison. BTW- Lisbon has great public transit too. I highly recommend the free app “citymapper” to navigate metro, busses, trams, etc. Enjoy your trip. Lucky you!