First Impressions...
Just picked the 2.4Ghz 15" model up from the Apple Store.
First impressions are disappointing:
Screen - (Anti-glare verion) looks good at first glance provided you don't go too far out of the sweet spot. The LED backlight discolors the pixels more at extreme angles than the LCD's i'm used to working on. However, once you open the calibration utility, that's where things get bad. Really bad. My display is unable to be calibrated because the slider on the right defaults to a location off the color swatch. See the image...
Clicking within the swatch, brings the cross hair back, but the colors within the swatch are way to blue or pink. Basically, you have to accept the default calibration the screen ships with. So if you need accurate color, then you'll be wanting to use an external display. Very frustrating for graphics people.
The screen is CRAZY bright. I'm excited to see if this makes it more useful outdoors -- although cranking up the brightness won't help my battery life.
Speed - I'm still installing apps as I write this, so stay tuned. But everything feels nice and zippy so far. I did just boot Photoshop to see how fast it came up, and it smokes my dual 2.0 G5.
Heat - REALLY HOT. I nearly burnt my hand feeling the underside after installing MS office. The laptop is on a hardwood table. Haven't heard any fans come on yet, at all, so I'm hoping that I don't have a dud.
Noise - Really quiet. (well, duh, the fans haven't made a peep yet)
Mfg Quality - Mediocre. The keyboard has sags a bit in near the E,R,T keys, and bludges up around the U, I, O keys. Small potatoes, but I noticed it within about 10 seconds of opening the lid.
My monitor is slightly racked. Not an issue when it's open, but when I close it, the left side remains about 1mm from the palm rest portion. I solved this by sticking a little rubber foot (LRF support!) in each corner, of the monitor bezel, then slicing off layers until the clasping was nice and tight. Yes I should probably march back to the store and pitch a fit to the 'geniuses', but I really hate dealing with them.
I also swear that i'm getting shocks from the wrist rest portion of the unit when it's on the table, and plugged into the wall. Doesn't seem to be a problem when it's on my lap. I'll see if I can replicate with other people tomorrow at work.
Wireless - airport (N) seems consistent with that of a macbook I played with a few months ago. Was able to keep both my G5 mounted and my Air Disk mounted as I walked thru the apartment. Definitely gets better reception than the Titanium model it replaces.
Overall, the largest problem I have is the screen quality. I wish that apple had the option to choose the new LED or the old LCD depending on your interest - battery life or color accuracy. Seems a shame to hurt the graphics pros on your most popular portable for pros. Sigh.