First - the apartment is gorgeous. It is large, bright and airy, with windows on three sides and a great view down to the water. Be aware that it is at the top of four flights of stairs, and there is no elevator. The bed is comfortable and the streets not too noisy, and the bathroom and kitchen are well-equipped and charming.
Second - Heloiza was an exceptional host. She was thorough, kind, gracious and welcoming. She included a book of recommendations of local bars, hangouts and sights to see, right down to contact information, price ranges and even walking directions. I have never met such a generous host. We cannot thank Heloiza enough for making our stay in Lisbon so perfect.