We had a great time at the Tiles House! The apartment offers enough room and the pictures offer a good overview. Diogo's business partner César picked us up from the airport and was always available if we had any questions, be it about the city or the apartment. Everything you need is there and all was nice and tidy. When you visit: go and have dinner at the restaurant below - it's great food and for a nice price.
For groups of 4: the bedrooms are spacious, but the living room can be a bit on the small side. But I would recommend to go out and discover the city anyways :-)