Did anyone return a PSAudio Powerplant? Why?

I found a good deal on the smallest Power Plant model and used it in my headphone rig.  With so much electrically noisy gear in my home office, computers, monitors, routers, switches, printer, etc - a P3 sounded like good insurance.  

I have a power plant 20 I am running all my gear plugged into it however most people here are saying the Amps should be plugged directly into the wall. Are people suggesting they should go into an AQ 3000 if so why? Thanks for your time

I had one and had to send it back to PS Audio for service, and it was probably around 10 years old at the time, but I really don’t remember for certain. The problem it had was something pretty common to older units from what I do remember. Something to do with the display and something else I just don't recall. Anyway, they brought it back to as-new shape with warranty for a reasonable cost. No complaints.

I have a Shunyata Denali 6000S V.2 .. System uses all Shunyata power cords too.

@nyev 

Take everything you hear from ASR with at least a pound of salt!

All the best.