I bought this tv to replace a 40" Sony that has been reassigned to Wii/PS3 duty in my son's playroom.
Unboxing, assembling the stand, locating the tv and putting in the connections took a matter of minutes.
For the first day or so I was quite unhappy with the picture quality - the colours seemed washed out. I'm using a Home Theatre PC attached to the TV, so I ran the Windows Colour Calibration utility, which takes you step by step through adjusting brightness, contrast and colour tint, and the picture quality improved massively. Then I loaded a DVD with THX (the George Lucas picture & audio enhancement) and used the THX video adjustment process to go through a similar process to the one I did with the Windows colour calibration.
With those 2 rounds of tweaking the picture on this LG TV is brilliant. As I'm running a PC through the TV I often use it as a monitor with a wireless keyboard - with the Sony TV I used to struggle to make out the text - with the LG it's very clear and easy on the eye.
HD footage is remarkable on the screen. I think it's something to do with having the blacks properly configured. Images have a clarity and depth that at times feels like 3D.
Edit - I originally said "My only real niggle with this TV is that the viewing angle is not as good as the old Sony. Colours start to wash out if you sit more than about 45 degrees either side of the centre line (90 degree total angle). They don't wash out massively at that level, but it's noticeable.".
However - I discovered that playing with the settings gave a much clearer, brighter picture that stands up to much wider viewing angles.
My settings are:
Energy Saving: Off
H Sharpness: 50
V Sharpness: 50
In Expert settings submenu:
Black level: High
Colour temperature: Cool
This, for me, gives a really excellent picture.