There are reviews around. Also I own the ECI 6D, which is a version with a built in DAC, no streamer.
I think it's really good ,gorgeous sound. Tonality is excellent, and I like it better than tthe PS audio stellar strata integrated which I also owned at one time. Two different sounds though one was not better than the other really, depends on your preference.
My ECI 6D is collecting dust now however, as I have moved into separates with a pre-amp that is tube based from Rogue Audio, and two mono block amps from Auralic. DAC is the Cyan2, though the onboard dac in the EC is no slouch and has slightly warm character.
It took a lot to unseat it as my favorite. The EC is apparently a well known name in the EU, but not so much here in the US. They make excellent sounding components are are well worth a listen.