The humble couch is amazing!! Mário also made our stay at Porto wonderfull! He prepared an amazing breakfast for us, and the couch is really comfortable, just like a bed! The place is quite central and you can reach the river in about 20 min walking distance.
We really enjoyed sharing conversations with the host, it is the best thing about travelling, to get to know the locals and their stories, so this is just the perfect place if you like travelling like a local :D
Thanks a lot Mário!