A small and convenient little spot just outside of the city center. We enjoyed being close to everything but not right in the heart of it. The apartment is well thought out and appointed, but felt a little tight at times. Comfortable bed, and nice to have a fridge, kettle and coffee maker. Hot water for the shower ran out quickly. Floors and walls are a bit thin (easy to imagine other guest hearing us walking around, etc).
Our check-in was great, but we did have one communication issue with another guest who was self-checking in, and mistakenly thought he was supposed to be in our unit.
We loved Porto!