My partner and I were lucky to find Raul's studio last-minutely when we were stranded in Porto after an unfortunate Airbnb experience.
The studio is quite small, but cosy, well-equipped, and comfortable (nice bed, great water pressure in the shower) and in a perfect location: all the main sights as well as plenty of shops and restaurants are within walking distance.
Raul is a super friendly and professional host and the check-in and check-out procedure was super easy. We would definitely recommend this place!