I bought this automatic switch couple months ago, based on the positive feedback I found on this forum and others. Works pretty well in my case, although you should be aware that its automatic algorithm cannot guarantee instant switching for all possible configurations of input devices (see documentation on the product page for details). Also, my item does not seem to support 88.2 kHz sampling rate for input signal (cannot obtain a reliable lock). Developer offered a replacement but cannot guarantee it will work with this sampling rate either, so I decided to keep mine. So far, I have only encountered 88.2 kHz album once (on Qobuz) and it was not the kind of music I am a fan of. With all other tracks, including 192 kHz ones, it works excellently switching my three TOSLINK sources into single TOSLINK output (plugged into my DAC). But as usual, YMMV.