I've had one for about 3 months now. I like it quite a bit. I started with a 15" Envision LCD, then a 17" Samsung LCD, and now to this 19" Dell LCD. Out of all of them, this has the best picture quality and brightness.
People have said it ghosts quite a bit, but I must have very non-sensitive eyes as I've played FPS games on it without any problems. I've also played full motion video without noticing any ghosting. I'm using a DVI connection from a GF4 4200.
The portrait and landscape mode is pretty cool also. For the first 2 months, I used it portrait mode. Makes surfing a lot nicer.
Overall, I'd recommend it.