The Asus VH198T is easily one of the best LCD's available in its price class. The picture is vibrant and bright, helped greatly by this model's LED backlighting. For years LCD's have suffered from very poor contrast ratios that make blacks look more like charcoal grey, and while the 10,000,000 to one contrast (I'm assuming that's "dynamic contrast") is questionable at best, the fact is that contrast is much, much better than the LCD's of even just a year or two ago. The screen is bright, the colors are vivid, the blacks are deep and everything is sharp (when run at the proper resolution, anything less than the native 1440x900 will result in a blurry picture, although that's typical of all LCD's). The picture is simply the best I've seen on any similarly priced model.
I work in IT procurement and we had been buying HP LCD's, but I gave Asus a shot based on the reputation they've earned through their components and netbooks, and I'm very glad I did. I've deployed nearly 200 of these at various locations and I have yet to experience one with a burnt or stuck pixel. I realize that's probably just luck, but some LCD's have been prone to having them. I think it's safe to say that the VH198T isn't one of them.
If there is anything to complain about (you know, for the sake of complaining, full disclosure and all that stuff), then I'd have to point at the speakers. Most people would much prefer to use separate speakers or headphones with their PC, but in the event that you're planning to use the dual 1 watt speakers built-in to the VH198T, you're probably going to want to upgrade. They're ok for listening to voicemails or maybe some streaming talk radio, but are sorely lacking for music or gaming. Also, as mentioned, the sticker at the bottom of the LCD does leave residue on the bezel, and it's very difficult to get off. That's the end of my gripes.
Overall, I can't recommend the VH198T enough. I'll continue to purchase them until it reaches end of life.