João the owner was extremely helpful and on hand when we arrived. He showed us all needed in the apartment and took us to show the local area - good restaurants, supermarket, etc. Just what you need arriving in a strange place in the evening. He remained in good contact, even helping us find a reliable tour company to see some sites outside the city.
The apartment was as advertised and comfortable. A good location near amenities and the Metro. However we must mention that this flat would be unsuitable for families with small children. It has been designed to make excellent and imaginative use of the limited space, but that means the stairs are exposed, etc. A minor point for most. We enjoyed staying there and our 8 year old loved it.