mine just arrived and straight out of the box it is absurdly good, using it with napsc. first thing i noticed was that i was instantly jamming along (i can't sit still as i'm typing this).
but in terms of sound, definition was what popped into my head. leading edges are bloody precise but not harsh. there's a slight warmth in the mids and bass is fast n punchy (might be lean for most people). my slow sounding audio technica wooden fones (w10vtg) no longer sound sluggish. it's almost like a whole new fone! basically gave it life and is one hell of a combo now.
there is almost no decay and soundstage and i don't miss it at all, but those aspects are not something i look for to begin with. despite this, other hifi aspects are there in folds. transparency, resolution, detail, etc...
anyways, it easily gets my praises. give it a try.