Where is the review?
I own a w5000 and from what i understand the w20000 only difference is the dc3 for a bit better black level, most dont find it worth the upgrade as they are otherwise identical.
Would be curious what firmware was used? Anything besides the latest firmware had issues.
Middling dynamic-iris? Curious if you had a bad unit becuase the dynamic iris has been praised on the unit.
I love my w5000 though, i owned 4 projectors and this one has made me the most happy, a good blue ray on this machine which has exceptional sharpness is incredible, almost popping off the screen. Again its very unforgiving, it shows everything razor sharp good or bad in the picture. HD games and good blue rays are breath taking. Bad dvd's or satellite feed will show every defect. I purchased an hdmi flea to remove noise and artifacts from dvd and hd satellite sources and it was an excellent combination.
I also use brilliant color on this unit which gives less accurate RGB D65, but increases the color gamut. And boosts lumens by nearly 50 percent. ON video games its incredible. On movies I had to adjust colors, since bc adds alot of yellow and red I had to lower red gain and boost blue up a bit to get rid of the yellow, it looks very natural and life like yet, it would be hard to tell the difference between D65 and using bc once you make bc look more natural, you simply get a brighter more vibrant picture, with skin tones still looking natural, but of course not D65 perfect. I do find the bc more life like and more puchy with increased brightness. BUt for videophiles that want exact d65 color of red green and blue they wont want to use it.