For us it was the perfect apartment to stay in, as we were 6 people (3 couples) because it has 3 bedrooms and 2 bathrooms. Everything was clean and comfortable, located perfectly, 5 minutes walk from Porto historical center and near the famous wine cellars in a very quiet and peaceful area, quiet at night. Great restaurants nearby.
we visited Porto in January and normally the buildings in Portugal are not heated because the winters are not harsh, however, we had heaters in every room.
Beds were comfortable, we slept like at home, kitchen and bathrooms are well equipped.
Self check-in and collaboration with Daniel (the host) were super easy.
All in all, I fully recommend this apartment, especially for a group of friends.