The apartment is amazing gem inside Lisbon, near everything. You can reach almost every sight in 10-15min by feet. Maria is such a marvelous host, which will take care. She is super responsive and will give you wonderful tips, if you want.
The apartment comes with a locked parking spot and is not missing anything what you could need during your stay.
Without a doubt I highly recommend Maria and her apartment to everyone who is visiting Lisbon more than one day.