I bought the USB hub to reduce the bulkiness of the power socket. The device worked even much better than I expected. It is compatible with different phones and tabs and also it doesn't overheat when all the ports are in use.
I am fascinated by the functionally of the device. The USB hub works perfectly when I use it as a USB port extension for my PC. And during charging, I can't complain, it really surprised me with the super-fast charging speed.
Buying the USB hub was a great decision. I needed an organized work station with a few USB connections and it delivered exactly that.