I've been using it for 5-6 days. Product is okey, well made and working good. You can use multiple devices. I saw only one problem, if you connect two devices same time and after connect to computer or smartphone, the computer or phone don't recognise the cards or memory sticks. First, I connect the reader to the computer or phone then, plug first card or stick, when show the monitor it after plug second memory card/stick, everything ok. Very fast, light. I recommend.
It's very useful and compact.