We stayed at Miguel's place for 4 nights in July. The communication before our stay was very easy, and Miguel is good at contacting you and making sure you will have an easy check in. We were met by Thierry. Unfortunately we were late getting there (sorry!), but Thierry was kind enough to wait and show us around. The apartment is clean and spacey and looks exactly like the pictures - it was everything we needed for our base on our vacation. We felt that the hosts were very nice and easy to communicate with. The apartment is in the Alfama district which is the old part of town - you will experience small cozy roads (with a lot of hills, so be prepared to walk up and down!) and a lot of restaurants and cafés near by. You will be 8 minutes walking distance from a metro line and the city centre. We enjoyed the nearby restaurants and cafés and the small mini markets.
I will definetely not recommend driving here - if you have a rental car this is not an easy place to get to or park. I recommend getting a taxi og taking the metro.
All in all, this was perfect for a short stay in Lisbon! I would definetely stay here another time.