The GT house was ideally located near the centre of Lisbon and very well connected with the metro (public transport). It is very close, walking distance, to a few places such as the pantheon and museums, and even walkable to the main city square. Be aware that Lisbon is a city full of steep slopes and you need to have very comfortable light shoes with a good grip. This place offers a nice view of the ocean and a local street, and I highly recommend this place if you want to experience living in a Portuguese neighbourhood with a local flavour.
The apartment was very clean and so beautiful, that I actually spent half a day just relaxing in the apartment and enjoying the atmosphere instead of running from one touristy spot to another. The place has everything you need to spent a few days without having to live on fast food; a mini supermarket is at walking distance.
Maria was our host who was very easy to reach via whatsapp and responded almost immediately. She was very helpful in recommending us tips and advice on travelling and reaching places. It is the best way to get local tips than searching on the internet. She has a very warm nature, and i never hesitated to ask her any questions about the apartment and checking out.
I highly recommend this place!!