For cons, I could have done me the yellow LED. With all the connections that I have at home and a diode on each device (it's going to white, green to red), I feel like that ca home. I would have preferred to have a device without diode. It would have saved me from having christmas lights in my studio.
For me the length is perfect. short, just enough to put him over my htpc. Although I would have preferred a unit with detachable cable, even pay a bit more expensive. It would have helped change the cable depending on the need.
I currently use coupled with my media center, to power my usb network drive.