I cancelled my Amazon pre-order and bought this today from GameStop because they are actually in stock and are giving Uncharted 3 for free with it.
Have only played 360 on it for a couple hours, so no 3D stuff yet. Maybe later tonight if I have time to hook up my PS3. I have Lion King 3D waiting to be watched, and I have never watched any movie in 3D yet, so I am looking forward to that.
Overall first impression: it's okay. When Sony first announced this, the specs on their website said it is a VA panel with 3000 or 4000 contrast ratio (I forget which exactly) and 4 or 5ms refresh rate. These detailed specs have since been taken down on the Sony PlayStation website, and replaced with marketing jargon like "best-in-class 3D".
I'm not a hardcore videophile, so I don't know anything about calibrating my TVs/monitors, but I do always fiddle with a TV's menu options. The options on the PS Display are pretty simple, or scarce depending on how you look at it. For video, you have adjustments for backlight level, brightness, contrast, color, hue, sharpness and 3 color temps to choose from (warm, normal, cool). No other adjustments that are common in many TVs today, like dynamic contrast, different gamma/black levels, or whatnot. This is fine by me, because I always disable those extra "enhancements" on my TVs anyways. No individual RGB sliders to adjust.
For sound, you can adjust treble and bass. No equalizer. Sound quality when I played a few games was so-so. Though I guess there's only so much you can do with the built-in 3 watts per channel and the 5 watt built-in subwoofer (those numbers according to the official specs).
Contrast levels seem okay, I'm used to the average 1000:1 for smaller LCD's, and this seems slightly higher, though I don't have any tools to measure this stuff. Don't know if it's as high as the original specs say, though I doubt it. Overall image is decent, and I thought the colors were nice and well-saturated at the default 50 out of 100 color setting.
I've never seen or used a 3D display before, and thus don't know if 120hz/240hz LCDs are supposed to be any different image-wise, but when I was playing Modern Warfare 3 and some old demos it didn't feel any different than any of my other 60hz LCDs. I thought these higher refresh rate panels were supposed to eliminate ghosting, but the PS Display (supposedly 240hz) does exhibit ghosting. When you look around like in a fps game there's that typical lcd blurring.
Can't say much about input lag, I'm not too sensitive to it and don't know how to measure it. I'm fine with my Dell U2410 which is measured in reviews to be ~24ms.
The screen itself is semi-glossy... more glossy than matte. Doesn't seem as egregious as some glossy screens I've seen, but again, more gloss than matte.
And I had to use standard black levels in the 360's display options. Usually, monitors support the expanded level, but this does not.
Will post more impressions when I can, hopefully after I've watched some 3D stuff.