The good things first:
The apartment is really well located. It's within walking distance of the Metro, the train station, and also close to the historic center of Porto. There is a well equipped kitchen with everything you need for cooking. In generel it is a good place to stay for a short trip to Porto. The apartment is also relatively cheap and there is a supermarket very close by.
Now for the bad things:
1) We only had one blanket for the first few nights with 2 people. We asked for a second blanket immediately after arrival, but it took several days until it was provided. One of us had to cover himself with a towel for 4 nights, which is unacceptable. Communication with the LoveStay team was not good at this point.
2) A few things are falling apart a bit, like the drawers in the kitchen or the slatted frame of the bed.
3) The vent in the bathroom does not work, which leads to extreme humidity in the bathroom.
4) Now the most important point: There is a huge construction site right next door, where they work from Monday to Friday. The noise from the construction site is extremely loud and unbearable even with the windows closed. In addition, during the last days of our stay, scaffolding was erected directly in front of the living room window. This means that construction workers are working right in front of the window and they can see into the flat the whole time. So there is no privacy at all, which is very unpleasant. And the worst thing is that you were not informed about the construction site by the host (LoveStay) before booking. Since other guests have already complained about the construction site in their reviews months ago, the host is aware about the construction site but still doesn´t inform the guests about it. This is not acceptable in my opinion. Requests for a refund from the hosts and airbnb were refused and the holiday had come to an unpleasant end. The construction site will remain at least until mid/end of 2022. I would therefore advise against a booking during this period.