Just to follow up... I've got my 912 up and running. My previous monitor was a CTX PR960 (almost identical specs, but it uses the Sony Trinitron tube instead of the Mits). From a performance perspective, the ony issues I had with the CTX were some slight geometry issues, an "unclean" signal (looking closely at the screen, you could see a jitteryness or noise pattern in the pixels), and especially uniformity. For example, a solid white screen would not have consistent brightness in all areas. But the kicker was that it died after about sixe months. CTX repaired it under warranty, but returned it in horrible shape, both physically (cabinet), and the picture was COMPLETELY screwed up (total discoloration in the right 25% of the screen). Not only would they rectify that, they wouldn't ever return my phone calls or emails about the issue. This was 2.5 years ago, and I've been living with that ever since.
So I finally got tired of it, and replaced it with the 912. ALL the issues I had with the CTX are much improved. The signal looks MUCH cleaner (which I'm a littlel surprised at, because I did notice an improvement in this area when I switched to BNC cables on the CTX, and the NEC doesn't have BNC inputs... I was afraid that the signal would suffer because of that). The geometry is better, and there are a couple more options for tweaking even further. And much better brightness consistency across the screen.
There is, however, one area that I think the CTX was a little better at: focus. The focus on the NEC is not consistent. There are parts of the screen (surprisingly, the sides) that are as good as, or maybe even better than, the CTX. But there are other areas where the focus is definitely worse. Especially the very bottom, and to some extent, the middle. When I look down at my task bar, I feel like I need to rub my eyes, because it's definitely not as clear there as I'm used to. There are no user focus adjustments... I wonder if a technician could improve this? I haven't noticed any of the issues others have mentioned here... no dead phosphors, and no vertical lines. Geometry is great, and the electronics seem to be of higher quality than the CTX. Plus, it's a MUCH more compact cabinet. That's a big issue for me.
EDIT: Also forgot to add that it seems more energy efficient. It puts out noticeably less heat than the CTX.
All in all, it's an improvement over the CTX. And CTX is not even an option anyway, due to their HORRIBLE support. At least I feel like NEC has a better reputation in this area, should I ever need it.