My family including my wife and my baby 6-month daughter spent 5 great days in Miguel's apartment in Largo Viriato renovated historic house. Despite of several rainy days in a row, Miguel made our stay very comfortable for us, always there to help with advice or check how things were going. He has good knowledge of the city and gave us lots of tips on local cultural and shopping spots, being especially helpful in his advice on restaurants. We tried several and they were great: very authentic and really good choice for value/money.
The apartment looks and feels like some castle quarters, but very comfy, warm, well-equipped and well-decorated. More than we expected, for sure. We couldn't use the backyard garden of the house more often due to the weather, but I'm sure it'll shine on sunny days.
Our overall experience was excellent! I would definitely recommend this house and Miguel as a perfect host in beautiful Porto.