I stayed (and worked) in this apartment for a few days. It’s really great - a good distribution, and really bright thanks to the 3 patio doors that look over the street.
The neighbourhood is nice - there are many coffee shops and restaurants nearby, and it’s only a few minutes walk from the centre.
I had no problems with the check in and service of Porto concierge. I liked that I could leave my bag in their office (as I arrived early). The office is only a few minutes away from the apartment.