This unit is perfect for my desk at work - it's at the right angle to see easily by my laptop, although it is difficult to swipe the fingerprint sensor to unlock the screen when the bottom edge is on, or just above, the desk. However with power going in whilst on the stand, I would just leave the screen on. It's neat and unobtrusive but weighs enough (140g - about as much as a full pot of youghurt) to be very stable. It has a non-slip ring on the top surface to prevent the phone slipping - it works fine, even with my phone's silicon case.
The charger works off both mains and USB output (charger & USB cable supplied, but see below). I checked it charging via USB from my laptop. The phone started at 90% and took ~40mins to reach 100%, i.e. charging at about 1% every 4 mins (I graphed it and it was pretty linear through this range). N.B. I had set the display to stay on throughout; presumably it would have been quicker with the display off, but I wanted to check that the charge power was enough to keep it on AND charging. It was!
It's not the cheapest stand or charger, but it's stylish, unobtrusive, simple and effective.