I have a Sonos Connect with the Wyred 4 Sound mod and I love it. It's paired with very nice DAC, the original Naim DAC. Huge improvement over the regular Sonos Connect (through the same DAC). For me this made the most sense - it's a cheaper upgrade than a Naim streamer or similar high-end streamer, and I use Sonos throughout the house. All as Roon endpoints. I had heard also heard mixed things about the BlueSound streamers as Roon endpoints. I A/B'd against a standard Connect and the modded one is significantly better. Hard to find at the moment I think though - I found one through a dealer since W4S didn't respond to my attempts to buy through them.