Location, location, location!!!!
We had an amazing weekend at Alexandre's apartment in Chiado. I believe this is one of the best areas to stay as you have everything right in front of you.. bars, restaurants, shops, supermarkets, the old town of the city (Bairro Alto) and even the famous tram line 28 passes right in front of the house! Don't worry about the noise though, you are on the sixth floor and on the backside of the building, basically all you have to do is to enjoy the view. Also there are two elevators to take you and your bags upstairs :)
The apartment is cosy, clean and well-equipped. You can even cook your own meals but who wants to that when you have so many opportunities to go out. Go for Carmo at Lago do Carmo... Yummy!
The contact with Alexandre and Catarina (who greeted us at the apartment) was always quick and efficient, they are both excellent hosts.
I would (and already did) recommend this place to all of my friends and family.
Enjoy beautiful Lisboa,
Thank you to Catarina and Alexandre