We were met and shown round the apartment by Pedro, which was much nicer than having to use a lock box. The apartment has been very well thought out, with a firm but comfortable mattress, a comfy sofa (which turns into a bed) (though there is no door to the bedroom so not much privacy), a very useful kitchen with most crockery/utensils you could need including a dishwasher, a dining area, a good TV with plenty of free channels, a good sized shower room with an absolutely amazing shower (very powerful) and a separate (2nd) loo with sink and mirror which was great for getting ready to go out. The place was surrounded by restaurants and cafes, just a few minutes walk from the metro (direct link to the airport), 5-10 mins walk to the main parts of the city and 15-20 mins walk to the old town and the river. It is located at the back of the buliding, so no road noise and very little construction noise (the whole of Porto is under development right now). Unfortunately, however, the internal sound proofing is very poor, and the upstairs neighbour (and his dog) could be heard at all times of the day and night thundering about, crashing, banging, shoving furniture about, chasing balls, ten pin bowling, tapdancing, exploding nuclear missiles - you get the picture. They seemed to be night-owls as the noise went on ALL night with no respite. We had no sleep the first night and resorted to a white noise app on full volume (plus earplugs) for our remaining nights to be able to get some rest. This was a great shame as we would, otherwise, have been happy to return. If you are the type to be able to sleep through armageddon (or don't mind using white noise/earplugs) we would recommend this apartment, as it really was a nice place to stay.