I see three points to this device that in my personal opinion give it a thumbs up. 1 It's cheap. 2 you can turn it off/bypass it. 3 People have asked for it. I know I've read several threads over the years where a poster has asked if such a device exists. There's an extra cable or two that'll be thrown into the mix, and that could be degrading, but for the folks shopping for such a device, their system is probably not that revealing, and thus shouldn't be a problem. I say bravo.