Great apartment- very clean, good shower and well equipped kitchen. Nice balcony to drink coffee and watch the day start and end.
Good transport links out to the coast or into the city, but can be very crowded at peak times. If you want to use public transport to get to the apartment from the airport it’s better to use the underground to Cais do Sodre and then take the train to Belem (rather than the tram or bus). From Belem station although it’s up hill it’s a relatively easy walk (as long as you don’t have heavy suitcases).
The pastel da Nata shop in Belem is busy by 11am - but you are only a short walk away so get there early to beat the queues!! And likewise for the Monastery.
There are some restaurants in Belem, but we found ourselves going back into Lisbon to eat.