I feel bad for Change. He really wanted the K612 to be the next FOTM, but it seems to be getting overshadowed by the K712. Of course the K712 costs more than double and I suspect it doesn't sound more than twice as good.
Exactly it is important to realize that the K712 is even 3x more expensive (in Europe).
For $200 (same price for us Europeans) you're getting a hell of a headphone.
I still regard it as the best sounding headphone in the ~200$ price range. Neutral reference class that is.
Sure it's not perfect, but I don't feel like I am missing something which is impressive. It's also a great all-rounder.
It is also, however, very revealing and a bit picky! That's something people don't expect in that price range.
In case of K612 I wouldn't be ashamed to pay even 300$ for it... I think it absolutely trounces over most of the headphones <400$/500$.