Which isn't a *bad* thing (I doubt any devices support a USB protocol for 'is it charging? How charged is it?', and even if some did *most don't*), and it's still useful.
Kinda wish it also functioned as a USB hub bridging all of the devices together, though...
Personally, I'd give it a six or seven out of ten, which is easily higher than any alternative.
There's no way to know what the device on the other end is doing with that current, but the charger is able to display what the voltage and current draw are at any given time on any given port.
As for making it into a USB hub, I'm very glad they didn't. For a benchtop power supply, I definitely wouldn't want my soldering iron, computer, and other random, experimental devices to be sharing a hub.