I bought this TV when it was first released. I can honestly say I think it contains the finest LCD panel that Sony has ever made.
As the other reviewers have said, I have yet to see any other TV come close to the picture, and I look _all_ the time. Not just clarity; the picture is smooth, without being blurry, clean without being too 'crisp', it's just seamlessly integrated, which means you don't end up looking at the screen thinking about the pixels, you just get drawn into whatever you are watching.
The colours are vibrant, but in a true to life way - many of the new sets, especially the LED ones have such 'over blown' colors that they are just tiring to look at, and completely unnatural - only good for Sci-fi, Animation and nothing else! I wanted a set that was good at everything - and this X series delivers that.
I have some great HD sources to test this panel to its limits, and I can honestly say it is never left wanting, it's able to get the most from any HD source, and it makes no difference if it's fast paced action from sport or action movies, or deep slow panning HD from a nature program - it's just all there in calm, controlled and perfectly balanced manner.
The one drawback is the built in tuner with standard definition TV, it just looks so 'average' in comparison, but it really doesn't matter - if you're using a HD cable or sky box, then everything is upconverted at the box for HD, so that bypasses the issue.
One thing that no one else has mentioned is how superb the sound is. My wife and I use it with the media center to play music in the house as the quality is just so much better than the standalone MP3 docking stations, even the good ones.
And to top it all off, it's a fantastic looking peice of kit, even my very fussy wife actually concedes that it looks "quite pretty", which from a technophobe is high praise indeed! :-) Hence it has been allowed pride of place up on the wall, a coop indeed!
None of the X series models since have been as good, so avoid the 4500 LED, and go for this X2000 instead. I'm convinced that Sony stopped making it as it was costing them too much, it was bought out to impress the market initially, and then gone quickly, which to me points to _expensive_ construction, and the subsequent models just don't have the same quality build feel or overall picture integration.
So in closing, if you're willing to invest the money, you will never, ever be disappointed with this TV.
As you can tell, I love it !