I stayed for 7 months during a job cobtract. I would stay longer if I could! Location is fantastic, well served by local restaurants and shops, supermarkets, and all amenities around, 4 min walk to shopping Amoreiras, easy parking and easy access to the IC19 way to Sintra, Cascais etc. The city just passed new pavement and refreshed the area.. it is really cool. The flat offers a good space for 2-4 people, with all appliances. There are 2 bathrooms, dont expect space on them, I was most of the time alone, and it was ok, but more then 2 people can get a bit tricky. There is also an area outside with sun ane even a space for a bbq and chillout. Neighbourhood is quiet I had no problem at all.
Luis is a fantastic host, always open to help. He even installed 2 air conditioning for the long stay which will be great for the next guests.
It is a closed street and if lucky you will find easy parking 3 steps of your door!
If location is of concern, go no where else, you found a great spot for your stay in Lisbon.