The place is in a great, very central location, close to immense amount of bars, restaurants, cafes and brunch places. Ideal location if you want to explore vibrant Lisbon. The downside of this location can be noise - if you are a light sleeper and prefer staying somewhere quiet, you might not be happy here, as the building and apartment are old and walls are thin, especially from the road facing room or the neighbours walking a dog at 5 am. The place was nice and clean, although I would say it looks a bit more polished on photos then in reality, but it offered everything we needed.
Other than that, the place is well equiped with anything you might need for short or longer stay, the communication was smooth and helpful, I would definitely recommend it.