The City Hubs were really nice and bigger than expected. Everything was clean and the Implementation of the App was fun to experiment with. You could even connect your phone to the Bluetooth speakers of your hub and enjoy some music during your stay, its set up so no one could hear you outside of the hub. The location was also really good, its in one of Rotterdam's biggest streets, so you'll always find something to do.
We came by car wich we had to park outside of Rotterdam (Park and Ride-Kralingse Zoom), but it was for free if you had the "OV-chipkaart" that you can buy at the train station. The stay was very nice and we would consider to book this Air B&B again.