Well, I've been using this U2410 for a few days and I have some comments on it compared to my old A7172A (FW900) 24" CRT:
Pros:
a) Size - The monitor is MUCH smaller physically even though it is 1.5" wider diagonally viable.
b) "Focus" - As it is an LCD, there is no focus, so no focus to go out. Text (especially small text) is much clearer.
c) Color - The U2410 comes precolor calibrated from the factor (includes the calibration sheet for your monitor as well). I am VERY happy with the sRGB calibration and after going through the Win7 calibration routine (I know, not a full profession cal), I had to make very few adjustments to dial it in. I have no doubt that the color calibration is much closer than my old CRT was.
d) Weight - Let's see, 110lbs (aka: 50kg) versus something I carried into the house with one hand... The LCD wins hands down by an order of magnitude (not really, but it sure FEELS like when you lift each one!) Heck, the old CRT was actually bowing the desk down in the center until I modified the hutch so I could push the monitor further back, which moved more of it's weight directly over the vertical back support.
e) Turn on time - The CRT takes a bit of time to turn on (electron gun has to warm up before it can emit the stream of electrons) and then it took another 20 to 30 minutes before EVERYTHING warmed up and the picture settled into it's best. This LCD fires right up and looks good almost instantly. I'm sure it too has some warm up issues, but they are SO much less significant than the CRT that they don't really appear as something you really see. Or at least something that I really see.
f) Room on desk - I am able to move the U2410 about 12" further back then the CRT. That frees up a LOT more room on my computer desk. I am able to reposition the keyboard and the mouse pad in better locations that make the ergonomics of my computer desk better. Plus, it makes it easier to clamp down my Logitech Momo Force wheel when I want to drive a few races.
g) Less energy - This U2410 still uses about 75w of power, but that is much less than the old CRT used. That will lead to less heat load in the room during the summer cooling months and hopefully a generally better temperature. Plus, using less power is always a good thing both financially and environmentally. This item played NO part in my decision to purchase this monitor, but it is still an advantage.
h) Screen - NO stuck pixes! No noticeable backlight bleeding. Very stable picture at assorted viewing angles, both side to side and up and down. That was one of the issues that has driven me nuts on TN panels, so I am glad to see that the IPS panels really are that much better in viewing angle performance.
Cons:
a) Slightly grainier text - The down side to having everything super sharp is the text appears more grainy than it every did on the CRT. I was expecting this as it is common on IPS panels and it was definitely the first thing I noticed (ok, the second thing. How light it was was the FIRST thing!).
b) My eyes definitely wasn't as happy with the LCD INITIALLY as it was with the CRT. Probably because I ran the CRT at 85 hz (same 1900x1200 resolution on both). It just had the "pulling" feel to my eyes that I didn't get on the CRT. Of course, by the third day, I no longer noticed it, so I assume my eyes got used to the LCD.
c) Pain - While carefully lifting the old CRT off my desk, I STILL managed to pull some muscles in my lower back! My back STILL hurts today! It REALLY pisses me off because I followed all the normal lifting rules (use legs not back, keep back straight, etc.) and I STILL messed my back up! I listed this as con to the LCD because had I NOT purchased it, I would never have moved the the CRT and my back would NOT be hurting today!
All in all, I am very happy with this LCD. Just the improvement in the desk ergonomics alone would make me very hesitant to go back to a CRT (assuming I could get a brand new FW900 in perfect working order). Bigger screen + smaller size is a very nice combination. I am glad I spent the money and bought a high quality LCD instead of saved money and went with a TN.