Update : I take away one star as I have to return the projector after 6 hour of view due to excessive rainbow artifact . I maybe more sensitive than other but on my old Infocus 4205sp I could only see they if I move my eye back and forth on white end title on black background - perhaps the extra brightness and constrast of the w6000 make it worse , but I could see rainbow during actual scene -lrb- my wife , who have never see the rainbow on the old projector say she do notice they on the w6000 but they be not bothersome to she -rrb- . it be a real pity as the picture quality be simply AMAZING and the brightness make it perfect for any room . this be probably the best projector I have see and I hope BENQ will consider release a upgrade of this model with the follow feature : 1 . -rrb- no rainbow -lrb- speed up the color wheel -rrb- - must do 2 . -rrb- 2.1:1 zoom to add placement flexibility and compete with lcd\/lcos this would be optional BUT would allow just about anyone a good chance of shelf mount the projector avoid cieling mounts\/cabling , etc. . 3 . -rrb- faster\/more quiet iris to compete in the ultra black level market . 4 . -rrb- ability to dim brightness a bit further as even in low bulb mode it be a tad too bright for my room -lrb- could this be achieve by let the user set a close down the iris max open level ? or to be more `` green '' perhaps the option to buy the projector with a lower wattage bulb would be a good trade-off -rrb- 5 . -rrb- option for white case when ceiling mount on light\/white ceiling . 6 . -rrb- longer warranty -lrb- 3 year ? -rrb- and a lens cover . review : I be in the market to replace my aging Infocus 4805sp -lrb- dlp 720x480 -rrb- and do extensive research on several good projector web site and a lot of reading of user comment . I 'll start off by say that I like DLP 's color and sharpness better than lcd\/lcos . I do not have a dark room and although I watch movie at night , white wall ruin any chance at super dark level . I also do not have a expansive budget - I be look to keep my projector cost -lrb- $ 1500 . I purchase a 106 '' diagonal 16:9 dalite hus contrast white screen -lrb- gain 1.1 -rrb- and mount the projector at the back of the room on a 8 ' ceiling at the maximum distance of ~ 18 ' foot away . after eliminate some nice dlp choice due to excessive offset -lrb- when ceiling mount they image be too low below the ceiling -rrb- it come down to the Optoma hd20 and benqw6000 - these two be not in the same class , one be a $ 900 and the other be $ 1800 . base on review the hd20 have a good form factor , good brighness & fast color wheel -lrb- eliminate visible rainbow -rrb- but much lower contrast , high fan noise , and very little placement flexibility . w6000 be MUCH more user-friendly in term of placement , tuning the image , set up user profile , and be super bright and very good dark level . I be check price and catch a great price for a new unit through Amazon at $ 1499 -lrb- $ 1 under budget : -rrb- my direct experience : this projector be physically huge compare with my old 4805 . the box be sleek and shiny black - would have much prefer a white box as it would blend better on the ceiling . the lens be in the centreline so mount and align with the center of the screen be easy - the projector have a mechanical joystick control that allow shift the image up\/down right\/left by several foot in any direction so even if you do not have thing just right or have limitation on placement this projector can probably accomodate the situation . the only exception be the zoom lens which be a 1.5:1 vs. competet lcd\/lcos model with 2 or 2.1:1 -lrb- a higher ratio mean you have a larger range between closest and farthest projector placement for a give image\/screen size -rrb- . the hd20 be 1.2:1 so almost have no range at all . the BENQ miss be on my back shelf by 18 '' -lrb- I would have prefer backshelf placement since I could have avoid all the ceiling work and cabling -rrb- the projector be not super quiet but fan noise be not loud and at low frequency so at 3 ft away from the seat it be not bothersome - in normal bulb mode or high brightness though the fan might be too loud for some people . the image out of the box without calibration look great . this projector be really bright , color be SUPER vivid , the image , especially blueray through hdmus be razor sharp , and the contrast and dark level be impressive -lrb- even without the iris -rrb- . in low bulb set it be still super bright -lrb- ~ 3x brighter than my old projector -rrb- . Menus be easy to read and understand and the remote be easy to use . regular dvd look to have MPEG compression artifact and then I discover the default sharpness have be set to +8 . I bring it down to 0 and normal dvd look great -lrb- blueray still look great at this setting -rrb- . there be a comb filter for further cleaning thing up but I have not try this yet . I strongly recommend this projector with the BIG caveat be that you better have a screen at least 100 '' in size or prepare to be blind -lrb- in a room that get a lot of light though then this level of brightness be a boon -rrb- and if you be sensitive to rainbow from spin color wheel , you will probably notice it in some scene on this projector -lrb- e.g. bright object move on a dark backround -rrb- . the rainbow end up be a `` show stopper '' for I and I have to return the projector -lrb- kudos to Amamzon for they liberal and easy return policy -rrb- .