I'm not quite sure where you read that. You can do some serious damage if you toss the Concero at somebody. It's got a milled aluminium chassis and feels very hefty for the size. The sound is more hefty than you would expect considering the Concero's size. I have heard DACs with greater dynamics and meatier mids and better detail retrieval, but the best thing about the Concero is the cohesiveness from top to bottom and it has quite a lively sound. There is nothing that sounds out of place which is rare at the price.
I was referring to the sound (not the build). That was primarily from the audiostream and 6moons reviews. So they are a very neutral sounding DAC you would say? I kind of wonder what the term "meaty" means anyway. Do you mean they don't have as much lower midrange emphasis as other sources? Do vocals ever sound thin on these? I'm just curious because I like detail but am always scared of the midrange sounding thin. I suppose I kind of like "fat" mids, whatever that means.