Just ordered this. <does happy dance>
I have the 46" version and absolutely love it . It does suffer a bit from the edge light bleed as Mark says, but not so much to ruin the viewing IMO. I found that once I hooked Sky up to it, you tend to not use a lot of the functions as you're using the Sky remote most of the time (whereas I did before hand, as you were just using the Samsung one). The voice control is a bit embarrassing (I've turned it off), but the gesture control can be handy for when the remote is the other side of the room and you want to adjust the volume without bothering to get up ).
I've got some settings on my iPad to set the picture quality to (that I down-loaded from a Samsung fanboi site ), that transform the picture to an amazingly realistic quality (rather than the glaring show-room settings the TV comes with as standard). IMO, it is so good, that when the screen is wall mounted, it looks like you looking through a window . I'll add them to the thread when I get home . The problem is that they can make things look TOO realistic, so sets seem obviously "sets", rather than the thing they are trying to be, but sticking on a Blue-ray and OMG, it's spectacular.
One thing that you might need to know, the TVs are produced in one of the Eastern block countries (I think Slovakia or something like that) and when they arrive, the language option can be sometimes set to this. If that is the case, give me a shout and I can talk you through how to switch it to English .
I personally think you need to buy one of the slim wall mounts to take full advantage of the depth of the TV, the Vogels 355 one that I have will support the weight of the 55" with no bother . Free standing it is literally a waste of space IMO .
Remote control wall mount
I nearly went for the 55, but on anything that isn't HD or Blue-ray, the picture quality is obviously worse due to the upscaling involved, and I wasn't sure if I was going to bother with the Sky to start off with (as it has a built in Freesat receiver, which just needs a dish connecting). So will find that watching "normal" TV, the picture will be worse than the TV you are coming from. However, I imagine that as time marches on, all TV will soon be HD anyway, so not really an issue.
Forgot to say, the 3D is fricking awesome - especially watching a sport (like Wimbledon), which just gives a whole new sense of actually being there
Nordschleife - there's only two barriers to worry about - the ones on the left and the ones on the right!