Thanks for posting! This TV has made it to my short list (the W840B model through Best Buy in Canada, but it's the same TV as your W830B model). I'm comparing it with the 65" Sony W850A, the 65" Sony W950B, and (randomly) the 70" Sharp LE550.
How has the picture been treating you? Have you noticed any radial banding, milky blacks, etc.? They're apparently using an IPS panel on this model that sacrifices a bit of black & contrast for view angle and was just wondering if you have any complaints.
(Note, the only reason the Sharp is on my list is because the 70" Sony is $2899 while the 70" Sharp is only $1299. I know you get what you pay for, but that difference is insane.)