Claudia's place was welcoming, cutely designed and conveniently located to exploring Porto. We found the apartment very clean and Claudia (and her friend Antonio) very responsive in answering our questions. In terms of value for money, I don't think you can do much better. Our only quibble is that heard a lot of street noise at night, but that could be specific to visiting during the busy tourist season (August). Overall, great location, cute apartment, and we'd highly recommend it to others!