Loved this place! It is exactly as shown in the pictures, really cozy, strategically located and very clean! I would definitely stay here again on my next trip to Porto :).
Absolutely no issues regarding communication with the hosts. Carla was really helpful and replied fast to my messages.
The only issue you may have during your stay here is regarding the noise from the street that can get really loud! Since I ended up really tired by the end of the day, I didn't mind!