I use this switch with a cheap digital receiver and the Play Station 3. It works beautifully. Once a device is activated, it switches to this input order (even if the other is still on). Optionally there is also the option to manually switch by pressing a button on the device, which is still better than cable re plugs. For me, the automatic switch, however, has to work immediately.
To signal I can not say much because I have not long to switch and have also not been tested for hours. So far, the signal was perfect.
Because the price is very Ordnnung in there from me a buy recommendation.