Exactpower ep15a or PS Audio Power Plant Premier

Hello all - I'm considering an ep15a or a PPP for my system. I've been a doubter of all power conditioning in the past but with a recent rearrangement in my listening room I find myself with an outlet problem - I also have to admit that just about everything in audio I've ever doubted (IC's, vibration control, power cables) I have ultimately come around to and become a convert. That combined with the fact that right now the idea of running one PC to my rack into the power conditioner and then everything else into that is just the most elegant cable management solution I can think of (other than a power strip and I just can quite stand the idea of that - maybe that's ridiculous).

The reviews of both the ep15a and PPP are very positive and I can get either for a reasonable price right now used - the PPP will be a couple hundred more than the ep15a. Wondering if anyone has used both and had a preference or has a strong feeling about either unit. I don't think I have a power problem in my house (in Westchester NY) but then again, you never know what something like this can do for you until you know right? My only real experience with any kind of power conditioning was using a Project speed box on MMF-7 tt a few years ago, and the improvement there in speed stability was impressive. Even the blue light on the MMF-7 shone brighter - it was not a subtle upgrade.

I'm all tube in my system btw - Classic 1 (DV20x2), Budgie SUT, Manley Chinook, ARC LS26, Quicksilver Mini Mites, Triton Two. All Cardas Golden Ref cabling with Cardas Clear Light sp cables. Thanks for any input.