We loved our stay in Peter's flat! It was very clean and fully furnished and everything worked. The bed is very confortable! The appartment is well situatet. You can reach everthing by foot and the metro station is just around the corner.
Rita an Miguel were great hosts and their self-made guide (with tips, restaurant etc.) was helpful! Miguel even picked us up at the airport. If you go to Lisbon you should stay in Peter's flat!