I like the compact design of this little dock. It works well. It outputs the same video and audio quality as the official dock. I notice no difference in resolution, frame rate, or input lag.
While this is to the Covert Dock's benefit, it also doesn't help it stand out as, perhaps, an option with an upscaled output. I don't really care that much, myself, but it may be noted. This design can be circumvented with a USB hub, but again, it's another noticeable change.
All in all, I'm glad I bought this. It's easy to travel with and works perfectly well. But it has no bonuses, and it does have a slight downgrade, considering the single USB 2 port. However, the benefit of taking it anywhere easily outweighs these little complaints. Anyone who buys this, I trust you'll enjoy it!
Also, the Covert Dock only has one USB 2 slot. This is a downgrade from the official dock, which has three total, but it's understandable, given the compact size of Genki's product.