Can’t knock this
I’m a home user who bought this to fix the audio sync on my AV receiver. I really should knock this for being objectively expensive for what it is, but the one thing it does do it does absolutely perfectly, and i no longer have to worry if I’ve messed the settings up calibrating it by eye, which i’ve been trying to do on-and-off for literally years! Worth every penny just to not have to deal with that :)