Love it. I've had it since 2/26, the stock 2.66 configuration. Best design Apple (or anyone) has come up with yet. It feels extremely solid - like a single piece of Aluminum. Wait - it IS
One of the best features, I've found, is the glass trackpad. Whatever texture they came up with, ALWAYS feels silky smooth, no matter how dry or moist my finger is. It feels like my old trackpad did after cleaning with iKlear/Klearscreen, except this one is always that way.
Mixed feelings on the single trackpad button, but the extra real estate is worth it.
4-finger Expose doesn't matter that much, as I've been used to hot-corners.
I never thought I'd get a glossy screen, as I do photography/graphics, but the extra "snap" to it really helps text. I usually don't have any other light sources in this room, so reflections have been zero (it's the xx99 module).
It runs cooler than my 2.33 C2D 17", though I haven't run it at max. I've had it running the CPU/GPU to 180F, and fans up to around 4000 RPM. Bottom warm (I can keep hand on it), top barely warm. Can't really hear fans until they're well above 3000 RPM.
My ONLY real complaint: video redraw glitches - the full or partial flash/flicker. I've been logging conditions for a few days now, and it's not temperature or CPU/GPU load. It's now appearing to be only with the 9600M, which is the opposite of other reports I've read. This isn't the green line or streak problem some have reported, and not backlight. There are a couple examples on YouTube. At this point, it really looks like a driver issue (and I've heard hints Apple is working on it). For many reasons (a perfect, zero dead pixel display being one of them), I'm going to just ignore it for now.