The apartment is great for a couple. You can find anything you need in the kitchen, and the shower is also very good.
The location is one of the coolest in town, with lots of restaurants, groceries, pubs and so on. But if you really want to stay in Campo de Ourique, just bear in mind that the airplanes fly so close to the city, and sometimes the noise could be a little loud.
André is a nice host and answered all my questions.
I just can't say I would return to André's place because I'm living in Lisbon now :)