Wyred4Sound Modified Sonos

Thanks for the feedback guys.  I had a Bluesound Node2i for a while but after hours and hours of comparing both (level matched) there was no discernible difference between the Sonos Connect and Node2i...so I saw no point in dropping the $550 for the Node 2i and then having to use the BlueOS in addition to Sonos.  You make a good point in that the Connects will eventually go obsolete.  @jbuhl, if you think the w4s Sonos is comparable to the Node 2i, then I guess I need to start looking elsewhere.
Thank you

Just want to offer my two cents. I have the Modded Sonos and also have an Innuos Zenith MK2. The Sonos probably gives you 75% of what the Innuos does. Where the Zenith separates itself is in the air/space around instruments, as well as the ability to deal with complex music in a better way. If there's a lot going on, the Sonos can get a little compressed sounding in comparison. Now all that said, I have found that adding a better PC makes a difference, as does a better dig coax. The Sonos still has easily one of the best interfaces around for usability, so that is something to consider too.

I used the modded Sonos Connect with a TG audio silver power cord and Wywires digital silver coax cable and the TG audio was plugged into a PS audio powerplant.  I even put a lead weight on the sonos as it is very light. I have to say it sounded very good and I agree with the previous comment that a better streamer such as my metrum ambre streamer via I2s is just a bit better on more complex music but the sonos does sound very good. My brother in law has a bluesound node 2i and we compared the modifed sonos coax with the blusound coax output and in my metrum dac the sonos was clearly better sounding.  I plan on using my connect in another system and as a backup to the metrum ambre.  
But I agree at this point the modified connect cannot do high resolution and there are other newer options available.  But if cd resolution is all you are interested in, the modification does improve the sound a lot.

@koslekt1 @mrotino thanks for the additional info

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.