I much prefer the Harmony with Denafrips Gaia via I2S, this vs. optimized usb feed. Issue is many streamers don't provide I2S which isn't any great loss assuming most streamer I2S interfaces probably not of great quality, which means implementing a DDC for highest quality I2S.
@audiostick May be over your budget, but this is way I'd go in your situation. Get Sonore Optical Rendu for your Roon Endpoint, keep the Bluesound, this will be Roon Core, you'll also need Sonore OpticalModule or generic optical conversion just in front of OpticalRendu. This serves three purposes, one is the OpticaRendu is superior streamer to Bluesound, two. you'll now have optical conversion which totally isolates noise from entering the streamer, three, Roon has superior sound quality with Core and Endpoint on two different devices. Now if you go a bit above budget, get the Denafrips Hermes or Gaia for the I2S to Harmony. I guarantee you this will be a significant upgrade to present setup, and for a very reasonable price.