Pedro's place is really convenient - close to the city center, but on a very quiet street. We even slept with our windows open, which would have been impossible in the heart of Lisbon.
The apartment is small, but really well equipped and has everything you need for a short or even a longer stay. The washer is combined with a dryer, which is really convenient for people travelling with hand luggage only.
I would definitely recommend the place to friends.