This hostel is the best one I’ve been to so far. The location is close to the center, and interior is amazingly beautiful. It’s only the first floor, so it was no problems for us to get there with suitcases. It is indeed a bit loud in the room, but if you close the window it’s fine. Just don’t forget to freshen up the air before you go to sleep ;)
Big thanks to Mario for being a great host and giving us the best tips on Porto!