Got mine & loving it!!
I'm not much of an overdrive guy but just a light sprinkling from the AOU really cuts through!!
I notice that it’s quite noisy tho (the main reason I bought it is for the pre and I play a clean sound), no hum just more of a white noise-esque hiss which, if I move the sliders, I can attenuate..
Issue is persistent without anything plugged in, various cables (1/4" and XLR: worse with cabsim engaged) but less noticeable with headphones..
I've removed digital pedals from my chain, and I know it's not my PSU (Voodoo Power 2 Plus)...
My signal chain: TC Polytune > Darklglass Super Symmetry > (Darkglass AOU here)> Wampler Ethereal > TC Ditto X2 is nice and quite without the AOU.. Any ideas?