The Andre´s apartment is great and is equipped with everything you need for a short stay. It is very clean and is situated in a very center of Lisboa in a hip area, however it was very quit during the night. The apartment has a charming terrace suitable for breakfast, dinner or a glass of port wine, which was presented to us upon arrival by Andre. Andre was a great host: he answered our messages within an hour, had many helpful suggestions and organized for us the transfer from the airport to his apartment (which was only 15 EURO and is totally worth the money).
One small remark: if you are a very tall person (like 190 cm or above) you might have some difficulties in the flat because the ceiling is not very high.