Having not heard the Dream, I would have told you that the Edelweiss is the smoothest, most analog sounding DAC I have ever heard in my system. No hard edges, no digital artifacts (or so I thought) just liquid, analog sound.
This is the limitation with superlatives...it's always in the context of what we've previously (and recently) had in our system (ideally). We think something is the best at whatever, and then something better comes along. Curious how the Nagra Tube DAC + separate PSU compares to the Dream DAC. Same digital designer (Koch), different power supply and analog output. I think it's amazing (as compared to the sound of live music) but...see limitation above.
By the way, not trying to be combative, just curious -- if the Dream is so good, why did the customer send it back? I assume it came down to a system matching preference.