Had you tried previous versions and this one blowed you away more than earlier ones?
I ask because I tried it in my system and couldn't hear a big difference, despite me wanting to. Might try it again.
For the record, my system is a very much optimized PC running WS2012R2 with Audiophile Optimizer and JRiver. The optimized (hardware) server made a big difference vs the previous laptop running JRiver. Running WS2012 in core mode made a big difference. The Optimizer made a huge difference. JPlay, even running from JPlaymini in the mode that blocks you out of the PC, etc, etc, made a marginal improvement. Not worth the hassle at the time.
But JPlay is still on my future list to try. Been chasing other shinny stuff though.
So the question whether you tried previous versions is very relevant to me.