Performance-wise, it is excellent hub 3.0 with transfer rates similar to those on the hub without a computer. For information (values depending on the computer configuration and quality devices, so they vary greatly from one PC to another), I reach rates of 80 MB / s with USB 3.0 and 28 MB / s in USB 2.0 always with a USB 3.0 key. I stay in the same level with 3.0 external hard drive. Losses in multiple transfers are anecdotal (except to use 4 ports simultaneously) which is a good point. Classically, we can also use it to charge devices or operate USB lamp.
This hub is known to be both efficient and discreet with a rather successful functional design. It's all good!