I needed a HDMI splitter to use my Sky HD box and PS3. I had been using another HDMI splitter which needed to be plugged into the mains and had a remote control to switch (it did not auto-switch), unfortunately every time I switched back to PS3 from sky the screen would be blank and I would have to unplug and replug the HDMI cables to get it back on screen.
So I purchased this device after reading the reviews and I was not disappointed. I immediately replaced the old splitter with this one and it works perfectly, I put sky in the first slot and PS3 in the second, so whenever I switch on the TV it is on Sky, when I switch the PS3 on, the screen automatically changes to PS3, and best of all it switches back to Sky when I turn the console off.
And the sound and video quality is still fantastic and now I no longer have to worry about another power lead.
Note to Buyers: You'll need a HDMI cable to connect this hub to your TV in addition to the ones you'll need for your devices. You can buy them quite cheaply online.