Amazing flat, amazing host. Cozy would be the perfect word to describe this place. Excellent for a long stay in Porto, it has everything you need, and it's spacy ! Perfect for a couple. As others said, it's secure and quite, with a lovely living room, a small but well equipped kitchen and the table is big enough to do some "Work from home" :)
Bed was big and comfortable. We also didn't need transport pass even for a month, you can do everything by feet and if you want to reach the beach (Foz do douro), you can take Uber or taxi.
I guarantee you you will have an amazing stay! And a special thanks to José for his kind words and 5/5 communication.