Joao's apartment is such a great place. It feels like coming home: best equipment, stylish, bigger than it looks on the pics and a great little terrace where you can enjoy the sun. It is located in the heart of Bairro Alto - you have to deal with the outside sound in the night time - but for us it was worth it.
Joao himself is very pleasent and so helpful. The umbrella on the terrace was "gone with the wind" and Joao brought us a new one. But be sure, you can enjoy the terrace with and without umbrella - it's so great to relax and enjoy Lisbon breaks. We highly recommend Joao and his apartment.