The apartment is very modern and clean, with an amazing view from the balcony. The location is ideal, with the city centre just a few minutes walk away but on a quiet street so that you aren't disturbed by traffic noice. There are lots of restaurants and bars close by, i especially recommend going to Porto 4, which is just around the corner.
The only downside is that the food shops nearby are very small, so would have to travel a bit if you need more than the basics.