Overall this apartment is great value for money! Perfectly located close to everything but on a quiet street. The apartment is very big and the garden is lovely (be prepared that there’s only sun for around 2 hours per day though).
Maria was very helpful and great communication.
Things to consider: there is not a lot of hot water for the shower. The WiFi is not good. The apartment is a bit dark and it smells a bit moldy in the living room (not a problem for me but one of my friends found it uncomfortable). Also note that you have to pay 20eur per night for guests sleeping over.
In spite of that though I would still recommend this apartment and stay there again myself! You won’t find another apartment of this size with a private garden in this area to such a low price in Lisbon!