I usually rant, in almost every review, that you want to buy yourself a calibration disk to really maximize the performance of almost all home theater projectors. Colors are usually off enough, to really merit spending some effort to get the colors right. (Not that projectors are bad in terms of color, but there's nothing like having a projector produce flesh tones, and other colors, that look really right, without your having to fiddle around with them.) In the case of the BenQ W100, if the production models are consistant in performance to this W100, you can really skip the calibration disk, just plug in, and enjoy.
There are great many strengths to this projector and only a few complaints (which is impressive for what may be the lowest cost DLP home theater projector on the market, so lets take a look at the Pros and Cons: