Puritan PSM156

anyone gone from psm156 to niagara 3000/5000? I've read differing opinions; some prefer the Puritan whereas others say the Puritan makes music sound thin/bright and prefer the niagara 5000. I'm currently using Lab12 Gordian and Niagara 1200, both of which I quite like, but am curious of the benefits/bump in sq of going to Puritan or 5000.

My PSM156 arrives tomorrow, along with an Ultimate cable.

Not sure why this is in the cable sub-forum, but anyway -I did plenty of reading before upgrading my power conditioner, here are some good reads: I bought the PSM156 and am extremely satisfied with the improvements

PSM136/156

Niagara vs PSM

I have the Puritan 136, which I found made an immediate positive impact on my system. I am planning, at some point, upgrading to the 156 in my main system and using my 136 in my secondary one. 
 

I am curious about the ultimate cable versus the classic one which I currently have. I’m interested in making that upgrade too. 
 

Can anyone share their experience with Ultimate cable? 

@bluethinker in my system the Ultimate Power Cable was a must. There is a level of noise/grunge that disappears when going from Classic to Ultimate PC. 
I was talking to a dealer just yesterday about Inakustik PCs and in comparing the $2800 Inakustik 2404 Air PC, he said the $800 Ultimate is one of the best values in the cable industry today. 
 IMO, you can get a touch more tonal realism and slightly bigger staging at triple the price with other PCs but the clarity, precision and lack of distortions is on par and often better than more expensive cables.