Luis is very flexible and responds very quickly to any inquiry. His apartment is located in the heart of Porto so everything that you want to see and visit is walkable. If you need to catch a train the São Bento station is two minutes away. You have to expect that being so central the apartment is a bit noisy (especially the living room, the bedroom is on a calmer side which means that you can sleep well;) and the neighborhood is a bit shady (especially in winter during covid times ;)
The apartment is nicely decorated and designed. The kitchen equipment is very basic but enough to prepare a simple meal. The place was generally clean but it was visible that some parts of the house (e.g. windows) have not been washed properly for some while.
We stayed there in December when the weather was not very favorable. Even though there were portable heaters we still felt cold 🥶. I am sure that in summer the experience would be much much better.
Generally a positive experience with some little issues to improve.