Yulan is a gracious and friendly host. She took the time to greet us, show us around, and answer any questions. Though the boiler needed an unexpected and last-minute repair, Yulan kept us updated and made sure we were comfortable. Riverhouse is in a particularly special location in beautiful Porto. The apartment is spacious and has many floors and steps, so just good to note. It did not concern us, even with a good amount of luggage. We were very pleased with our choice of accommodations. Yulan was always responsive and available. A great stay!