We had a good stay at Evenflow. The weather was terrible (5 days rain!) during our stay so we were greatful of the heaters and extra bedding. The apt is clean, the washing machine worked fine and the shower is powerful and warms quickly. Good location near Casa da Musica Train station which takes you all over Porto. The internet was OK. First night it was poor with slow speeds but that may be due to external issues as it was better on the following nights though not fast.