PS Audio Ultimate Outlet. Does it work well on amps?

I currently use a PS Audio Power Plant 300 for my source equipments. I am thinking about adding an Ultimate Outlet for my amp. Does anyone have experience with this product? I am somewhat hesitatant to use a line conditioner for my amp, as I have found that many don't necessarily make the amp sound better than having it connected straight to the ac outlet on the wall. Any insight you can share will be greatly appreciated. Thanks.