Faulty or a bad USB3 implementation? I recall talk here about early USB3 implementations being broken. Maybe that's what you mean. Maybe the distinction's not important. Oh have read that some docking stations for laptops are bad for USB3.
I haven't had many problems, although there have been a few odd things here and there. Debugging USB requires special hardware. Hard to know if it's firmware or driver issue.
I need to check the vendor for updates.
Now to find a power supply just to see if that makes things run smoother. And check the voltage range for this thing.