Tiago's apartment is amazingly located. Right opposite to the main Metro station, a supermarket next door (2 mins walk), a cafe downstairs, and the main shopping street at 10 mins walk (my Wife loved this part :)).
Tiago is a prompt and very polite host. He has wonderful knowledge of the city and its secret (local knowledge) sites. I will recommend this apartment to anyone who wants to stay in Porto city centre.
Thanks Tiago.