I just started a trial and the difference seems very worthwhile considering the costs of everything involved in trying to get a sound you like. This application might be a big steal at $80 in context (cables that make a marginal difference, for instance, go for $300, and I am inclined to believe people spend hundreds and even thousands more than they might otherwise on additional headphones, dacs, and amps). Using it with Audeze LCD-X at the moment and the difference is serious.
I am quite confused by the flat line denoting its effect as opposed to a curve. I'd be very curious if anyone can figure out what it actually does, but it definitely does something. Trounces the Schiit Loki some of us have resorted to. The question is whether the effect can't be replicated with eq through say Foobar. The guy who discouraged others from trying this has clearly not heard what it does.
How am I supposed to know if clipping is occurring? I was warned about it after set-up, but I don't appear to be hearing it.