UHS-II is awesome, works on android and Windows devices. PD is great. On my cell phone I can use the cell as a wireless webcam over Iriun - plug in a USB microphone AND a 64gb CD card - AND use external power, so that my battery stays at 100%. Important: No matter what PD source you use, you will only get USB Standard power output. Fast Charge / Qui k Charge / etc. is NOT supported.
Appears to work as advertised. Only tested on mouse and keyboard so far... have not done any speed test with usb stick or card reader tests yet so take review with grain of salt.