This was an absolutely wonderful stay and I recommend it 1000%. It's a light-filled apartment in a newly renovated historic palace, right in the heart of the artsy neighborhood of town. Not on a main street so you can open the windows and get sunlight, fresh air, and neighborhood sounds with no traffic noise. :) Mimi was a wonderful hostess with great communication. She obligingly sent info about the speedy wifi (which we needed for work) ahead of our arrival, and was super responsive and quick in fixing an issue we had with getting the hot water to work in our shower on our first night. The place is brand new and sparkling clean with amazing attention to detail: it has all the dishes and accoutrements you need for two people, fast internet, brand new appliances including a Nespresso machine, great-smelling bath products (really!), soft towels, comfy bed, quiet and effective AC..... Could not have asked for more. Mimi & Claudia also made sure there were nice small touches that made it fell "lux", like a bottle of Portuguese wine and a big bottle of water in the fridge when we arrived. It's hard to see from the photos but the balcony is also very nice to sit at in the mornings to drink coffee and do a little laptop work.
Communication and check-in were smooth and friendly, and the neighborhood is quaint and lively - some of Porto's best coffee, bakery, wine bars and artist shops/galleries are all right out the door. The touristy spots of town are all a 10 to 20 minute, beautiful walk away but the apartment avoids the tourist crush. It's also easy walking distance to the Jardim do Palacio do Cristal and the Museu Soares dos Reis. Would definitely stay here again next time we're in Porto!