We stayed at Felipe's apartment for 5 days and had a lovely time. Felipe greeted us with a smile and lots of helpful information. He had even sent me a map of the neighborhood with restaurants and the supermarket, which was very useful. The apartment was perfectly equipped, there was everything from towels to a beach umbrella. It was very clean, tidy and comfortable for two people. The neigborhood is perfect as it's close to the city center (10-15min walk) but not right in the middle of it, which means less street noises, and it also holds several great restaurants. We did hear a little bit of noise on two occasions, but it was overall a very quiet place. The place is also easily accessible from the airport.
Felipe is a great host, he is extremely helpful and will do anything in order of you to have the best time in Lisbon. We fully enjoyed our stay in this amazing city thanks to him! :)