This is a really great place in a REALLY great location, with a really amazing and attentive host. Tiago was quick to communicate and had really helpful recommendations when we checked in along with with a great guidebook.
We (2 people) stayed for 1 month and here were our thoughts
Location: You can take the train across the street but you are SUPER central and can pretty much walk anywhere in the city. Also there is the most amazing view from the apartment. Pictures do not do it justice.
WIFI/Internet: The internet was steady and reliable (including on video calls and gaming online), with a speed of around 22 mbps. We both WFH and had no issue.
Weekly Cleaning: Given that we stayed a month a weekly cleaning was included. It was always so nice to come home to freshly cleaned apartment and the quality of the clean was fantastic!
Elevator: So few and far between in Porto/Portugal. The apartment is on the 6th floor so it's great to not have to walk up stairs.
All in all we had a really great stay and would stay here again if we returned to Porto.