We stayed in Path Studio for a few days in the early part of October. It was very hot, so the air conditioning and the built in fridge made a big difference. The studio is exactly as shown in the pictures, with a very good quality bathroom and a comfortable bed. The kitchenette is quite small, but it's fine for snacks and small meals. There are a couple of local restaurants that seemed popular, but we chose to go into Porto to eat most nights. I will just mention that Tapabento Trinidade is only 5 mins walk away, and it's a great restaurant.
The studio is only a short walk from the local metro and then it's just one stop to the main interchange, so it's easy to go anywhere in and around Porto. An Andante Tour card makes travelling very easy, as they work on the metro (all zones) and buses (but not the trams) and they are good value - 7euro for 24 hrs, 15euro for 72 hrs.
Patricia and Pedro are excellent hosts and really try hard to make your stay comfortable and enjoyable. Highly recommended.