The flat is really nice and cozy and situated very central. Despite coterminous noisy district Bairro Alto, the flat is located in a quiet street. And You have a lot of different bars, restaurants and shops nearby. Maybe, the size of the flat seems to be of little bigger size on the pictures (you always have to be in a bowed position in the bedroom), but it shouldn't be a problem , coz while being at Lisbon you'd better doing sightseeing and going out but not sleeping :)
Miguel was very friendly and hospitable and he is always ready to help you. I do recommend that flat!