We enjoyed our stay in Porto but would not stay in this apartment again. Communication with the host was spotty at best. We arrived by train and updated the host frequently about our estimated time of arrival. When we got there, no one answered, so we rang every unit in the apartment and just one person responded... We wandered up to our unit and it had just been left open for us with keys on the table. (What if the one person in the apartment who answered had not been there?? I was traveling with my four children; this was a very lazy and irresponsible check-in procedure on the part of the host.)
After our stay (having been there nearly three weeks!), I thought I had left something in the apartment... I asked the host to check to see if I had left it and he initially responded, "The cleaners, not me." Huh?? I asked again if he could check for it and he responded, "Do I have to?" We stayed there for a long time and paid quite a lot and the host seemed totally detached -- he never even responded whether I did leave what I thought in the unit.
To his credit, we did ask for two extension cords to help fans blow air from the hallway into the bedrooms (it was SO HOT in there... no air conditioning, which we knew in advance but we hadn't realized that the bedrooms didn't have windows and therefore had no airflow--it was very unpleasant!), and he did provide those (although it took multiple emails for him to respond). When we saw him in the building, we asked if we could have clean towels (after about a week--and there was not a washer in the unit) and he said he would bring them in two days... and never did.
We've travelled around the world for 19 months in 45 countries and stayed in 132 accommodations.... This was one of the worst ones. It's rare that we've encountered such lazy property management.