@curiousjim
I did just that; from N130 with PD Creative kit and LPS, to Zen Mini mkiii w/Innuos LPS. Sold the Node and picked up the Zen pre-loved
It wasn't a minor improvement to SQ. To my mind, this jump was/is a major one; the law of diminishing return yet to kick in at this level, if that makes sense.
I also dropped the Network Acoustic ENO filter between network switch and the Zen which improved things again.