The apartment is fresh and modern and good value. it is right in the centre of the city, next to some good cafés for breakfast and lunch. It's also literally 2 minutes from the Clérigos tower/church and the Livrario Lello.
We met Joana who showed us the flat. She was really friendly and gave us lots of great tips of places to see and cafés/restaurants to eat at - including a great tip for Francesinha.
We really enjoyed our stay of 2 nights here - would come back again next time we are in Porto.