PC or Nuc? running Roon core

I have an old Intel Dell PC in another room running ROON OS. It’s networked via coax to my Gustard r26 DAC/rendering/streaming Quobuz. I have Xfinity internet router direct into the Gustard with Bluejean cable’s best coax. I’ve been intrigued by a newer generation Intel NUC offered on craigslist running the same Roon software. I would swap the NUC for the PC and bring it into the listening room. This would be more convenient because I wouldn’t need to constantly go back and forth, into the other room to turn on, launch roon and power off. So, here’s my question, knowing I would need to add a good USB cable into the NUC connection, I’m wondering if this change a step up is more convenience then sq? How much of a gain in the sq? I’m looking to keep my other components and improve the sound quality.

My system is Maggies 1.7mains, Rogers LS3/5a surrounds, NHT C2 center, Rel 9x, NAD M23 (mains), Parasound HCA 2125a (surrounds/center) Anthem AVM50, Gustard r26, Kimber cables. My music listening is using the Anthem DSP.

I look forward to your feedback.

Cheers!