We stayed at the apartment for 7 nights.
On arrival at Jardim Do Morro metro station (which is a mere 1 minute walk from the apartment), we were greeted by Miguel who was very kind and extremely generous. He bought us some chocolates and even a little toy for my son. Miguel sat us down and gave us an in depth breakdown of Porto and things that we may like to do, he was very passionate and extremely helpful.
The flat itself is perfectly spacious, very well laid out and comfortable. Our 11 month year old was also perfectly happy and safe within the apartment.
Location; really couldn't have done any better. Being on the Gaia side is in my opinion so much better, you're approximately 1 - 2 minutes away from Jardim De Morro metro station, 5 minutes to General Torres station, great for exploring the rest of Portugal. 10 minutes downhill walk to a series of restaurants and approximately 20 to the centre of old Porto. Also a short walk just outside the flat the views are beautiful.
I will say the terrace could do with a bit of tender loving care, a lick of paint is really all it needs. Other than this small fact, it was a lovely stay.