In case anyone was wondering:
1) This device works with the Macbook, as it should. The USB Hub and Card Reader are by Genesys Logic. This device does NOT support USB Power Delivery or other fancy stuff ~ it's a straight up USB 3.1 Gen 1 (or USB 3.0) data only device.
2) Power Consumption is probably non-trivial since the hub gets warm even with nothing attached.
3) The hub also works with a Nexus 5X.
4) The USB Type-C connector is pressed instead of drawn, which means it's weaker. (You can tell if a connector is drawn vs stamped by the zig-zag joint on one side ~ drawn connectors do not have a joint and are smooth on both sides).