Nuno and Thelma’s place was great. Check in was smooth and they were both very helpful in providing information and things to do in the area, and very responsive to questions during my stay. The apartment is stylish, clean, and well thought out. Location is quiet at night and there are several bars, restaurants, and grocery stores close by. The walk downtown is 15-20 min. Highly recommend Nuno and Thelma’s place if you are visiting Porto.