The LP-425zv I have has completely even brightness and color. I was actually suprised at how good the pic was. My buddies 10HT (which he bought the second it came out for $6500) has hot spots and uneven colors or color temp and blacks that are no better. The only problems I have with the 425zv are noise, even though its not that bad, and light spilling out the lens which washes out the blacks a bit. There are people who claim to have an easy fix for the light spill but you have to open it up. At $1400, in a year or two when I come across a LT-150Z or something better for cheap, I can pick it up without much guilt. I've seen the LT-150 and it has a great pic. The lack of a zoom was the Dell deal killer for me. Plus, today, its $1000 more which is alot relative to $1400. Don't expect the 425zv to beat a G-11 or LT-150 or other good, more costly PJ's. But if you want to get in on the cheap, you can get a respectable picture out of it and not be tied down when something else comes along.
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Greg