The price / product / function / convenience is excellent. Out of it .... the matérieaux are not beautiful. The Z1 carries the base each time you want to take it off the station. But the USB socket 2nd is its usefulness very quickly (in my case, in addition to loading the Z1, it allowed me to charge my Bluetooth speaker) The price is low, the quality also .... But it takes for a Z1! It should be delivered with even for not having a USB oter etantche cache without stop.