I was skeptical at first as to whether the quality of the signal is maintained or whether noise or disturbances arise. But it works better as expected. I've got my Xbox360, my WiiU and a HTPC connected that now go with a cable to the A / V receiver.
The HDMI Switcher is a remote control that is not needed, since it automatically detects which device is turned on. The last device that is turned on, gets the advantage. The remote would need to change only the input channel when multiple devices are turned on (which is not the case with me).
Conclusion: Small, discreet and chic box, which forward the connected devices without any loss of quality with images and sound to the A / V receiver. For the price absolutely top! 3D Transmission I can not test, because I do not have 3D equipment.