Yes, it's a visual stunner. I'm pretty darn happy.
I haven't updated yet (came with fw 1207), but it sure feels smooth right now. When I first set up PC mode and fired up Arkham Origins I thought "Hmm, looks awesome but doesn't feel as smooth as I remember." Then I realized that I had never turned off AMP on my 7500 and had gotten so used to the smoothness that anything else seemed a little choppy. Plus I'm only using one of my GTX 980s ATM (took one out to test a sound card), so I'm not getting max FPS. I'm sure that's contributing to it as well. Enabling AMP restored the smoothness and motion clarity that I was missing though, so all's gravy there.
Weird thing, though. I believe it was firmware 1207 that brought the huge improvement to Game mode (4:2:2) on the 6700 and 7500. With 1207 on the JS9000, I'm still seeing the degraded quality that was present on the old firmwares (fringing effect on text and muted color palette). Did you notice that too, or did you immediately update?
Hoping that they brought those improvements over to the JS9000 as well, because although Game mode feels extremely fast and responsive in terms of lag and performance, the improved visual fidelity in 1207+ on 6xxx and 7xxx was nice as it looked virtually identical to PC mode. I think I'll hang back on updating the firmware until you and other JS owners can speak on this.
Yes it was degraded when I was on 1007 or something out of the box... 1212 or so gave the quality then the last most recent update kept the quality and added in what felt like noticavly lower lag with amp on
Seriously update the firmware asap