The Schiit Mani is hard to beat for the $$. That said, I almost replaced mine, actually considered a used Parks ‘original’ phono stage, not the Puffin. But decided to gamble a bit, and bought a Chinese LPS unit for the Mani for $120 as I had read many good reports from adding one. A surprisingly nice improvement as soon as I hooked it up. Immediately switched the gain on the Manu down a notch, and everything seemed much more balanced and smooth. Right now, I have no desire to replace the Mani anymore....but eventually will, no doubt.
