We spend three night in Carlos apartment to visit Porto. The apartment is conveniently located near to a metro station and in walking distance from one of Porto main street. It should be noted that the walk towards the center is very pleasant going downhill, but can be a bit tiring the other way round due to a steep slope. The apartment in itself is furnished with a modern and very good taste, all the equipment was there and all brand new. The only complain I had is about noise at night mainly due to the absence of a Insulated glazing and a fairly busy road (both during we and week days).
Lastly, a sincere thank to Carlos who is a fantastic host and a real passionate of his city, his advices where fundamental to enjoy the city at the best.