First I would like to say that the device works as advertised, all of the ports function and it is very simple to setup.
The “Shelf” isn’t securely connected to the unit so it is unstable.
There is only (1) three pronged plug and it is centered on the device. This renders a (2) prong outlet useless, they should have offset the plug or put (2) on the device.
Lastly there is a screw hole on the top of the device, it looks as though it “could” be for screwing into the face-plate of the wall outlet for a more secure unit. But again since the plug is not offset it doesn’t line up with anything and could have just been avoided all together…
Worth a few bucks, I have seen better and I have seen much worse.