We can only echo other reviews - a lovely house in a great location. Clean, stylish, great communication with Sharon, lots of useful information provided.
We really liked the simple clean lines of this unique house, but with every comfort, such as hairdryers for all, iron and ironing board conveniently in its own room. The kitchen is fully equipped, there's a washing machine (I don't know why I wash clothes on holiday! - but I do!), lots of cutlery, crockery, etc.
Location is great - right next to Sao Bento rail station, so you get to see those marvellous tiles every day if you like (we did!); easy to walk everywhere but if we needed transportation Uber was very efficient and cheap. Looking at the Cathedral every day and being able to walk there in 2 minutes was a great bonus, then a lovely 10 minute walk down to Ribeiro and the river front.
We also loved going downstairs to look at Squid Ink Works - if you can't find a print or picture here you are very hard to please.
One recommendation for somewhere to eat is Tapa Bento, the other side of Sao Bento train station, two of the best puddings I've ever had - the peanut butter delight and the citrus desert - superb!
Would highly recommend and will wish to come back; Porto is a great city in a marvellous country and staying in this house made our trip a delight.