I picked up my 46" HX929 this afternoon and I have mostly good news for my first report.
First - the unit is totally uncalibrated - running all factory settings and I know that I have a number of things to change to get the best results. I will do a first cut on calibration soon but it may be a day or two until I have the time. I have read some guidelines from Nick (thanks dude) and I will start there. It is just set up temporarily without any inputs but a DVD player (not even Blu-ray) right now, so my display options are limited. It goes into it's new home in the next couple of days - my wife bought a cabinet to hide my beautiful new toy in! It comes tomorrow, so setup will follow after that.
The front appearance with the smooth black glass is clean and beautiful and the heavy metal base exceeds what I expected, having gotten used to Samsung's cheap black plastic bases. Otherwise there is not much to see, which I believe is the point of that design. Very nice. The frontal area is nicely limited to not a whole lot more than the actual display, lowering its impact for the size. I just saw my sister's 46" Samsung yesterday and by comparison it looks much larger. I think this would make the 55" and 65" look really nice, although I have not yet seen the 55".
PQ is amazing and easily meets all (or mostly all) of my expectations for right out of the box performance. Black levels approach plasma quality IMO - no dark gray LED stuff - just clear, deep black. The black bars on letterbox are virtually undetectable from the black border of the display. I do see just a small amount of flashlighting in both lower corners, more so on the right. I have no more than one hour of use at this point and I saw it under some conditions and not in others - I think that I will have to get more time in to form a firm opinion on that. How this occurs with a local dimming full LED array is beyond me although others have reported it too. One guy posting here last week said that his went away after a few days - not sure if that was related to wear in or to adjusting the backlight intensity. I do not see any obvious blooming at all, although I have not done anything to stress it and force that like some people have. I created a black and white image that should be good for testing that but until I get it set up properly I won't have time to play with that either. Like any LCD there is off angle image degradation - that is my biggest disappointment at this point and I was expecting better in that regard. I would say that if your viewing environment needs to accommodate going much past 45 degrees to the side you should think twice. Up to about 45 degrees it is consistently good, but after that PQ drops noticeably.
I am still not willing to say for sure what I think about the viewing angle issue. I have read the tweaks posted here on AVS to optimize the display and they will be where I start until I have the time to do that properly. I probably overstated my concerns on this part, but it is a topic of a lot of concern to people and it is also the only negative thing that I could find to post! The impressive part for me was that I could see no PQ degradation at all in the 90 degree viewing aspect from dead center (45 degrees to left and right). So I think that made what PQ loss that I did see after that seem worse.
Images - I know you would like to see some - but I just don't have a camera of sufficient quality to properly capture the output of such a fine display yet. I intend to network with some friends and see if anyone has a digital SLR that I could borrow. My 8 megapixel phone and my point and shoot camera turned beautiful display images into crap - sorry. Not a big deal though since other people with high quality ditital SLR's have already posted some very good images.
Stay tuned for more impressions as I get some more time to explore this thing - it came at a very busy time for me - work and family things are competing in a big way right now. But my first impression is that I did not make a mistake and that this is a beautiful display that I will end up being very happy with!