I would highly recommend staying at Miguel's place, its right at the heart of Lisbon, a very short walk to the metro station, very close to local shops and walking distance to all the main attractions. The apartment is very clean, homely, has air-con, wi-fi, dishwasher, very comfy bed, and a TV. Miguel was an excellent host responding to messages very quickly always with helpful information. I would 100% stay in Miguel's place again!