When we arrived in the building, we were told by the lady greeting us (not the host) that the AC and balcony were unavailable due to construction, despite both these features being advertised on the ad. She then gave us the key, apologized, and left us going into the apartment on our own. A notice was visible in the entrance hall, that construction was ongoing since May. Since we did not get a heads up from the host, we were unable to cancel our stay and get a full refund. Instead we were forced to pay for a night, at full price even though we did not have the major amenities listed in the ad. Since we just arrived in Porto that day, it was just easier to stay there for a night and get a refund for the rest of our stay.
If advertised as 2 rooms, 2 rooms should be provided. The second room was locked, and thankfully the people working for the host were quick to arrive and help us with this issue.
Construction was going on right outside the main room, the workers were literally working on the building facade as we walked in, so they could see directly into our apartment. Due to the amount of dust this created, and the lack of privacy caused by the renovations, we weren't able to open the windows to let air flow, adding to the unusable AC.
The floors were not clean. The bottom of our feet were black from walking barefoot in the apartment. The fridge was dirty.
The positive in all of this is that the two staff members working for the host were very responsive and kind, they did the best they could to accommodate us. They came to help with the locked door issue and even bought a fan to help. We also got our refund the next day, for the rest of our stay there, from the host. The apartment was modern and spacious, but it would've been nice to have a TV.