I've stayed in Porto before, usually in a hotel, but this trip was for four months so decided to stay in an apartment. Tiago's place is perfect for that happy combination of quiet, convenient for fantastic restaurants as well as coastal strolls interspersed with great coffee pit-stops.
Tiago is a fantastic host and any glitches are punctually addressed without the slightest quibble. The apartment is comfortable and has everything you's possibly need for a weekend or longer break. I really can't fault it and if I ever need to come back to Porto, this would be my destination of choice.