I agree with much of what Barry said. I had the Dwin for about two weeks, but had to return it because I saw the rainbow effect to a great extent. I also did not like the light spill (although this is really more of a minor inconvenience that can be accounted for), and I also thought it was noisier than I expected, but this was not a serious issue when a movie was playing. I also agree that it was very easy to set up. I thought the picture was very film like with very good color.
I have since looked at two LCD's (the Sony 10HT and the Sharp DW100U) and I prefer both of them to the Dwin, but that is primarily attributable to the fact that I can't tolerate the rainbow effect, while the slight pixelization on the LCD's when matched with a Stewart GreyHawk is tolerable (and can be reduced further with a depixelization lens).
I also think the Dwin is overpriced at the present time, given the fact that (1) it appears that 6 element color wheels will be appearing on DLP's shortly, and preliminary indications are that these wheels might solve the rainbow problem, (2) there are cheaper alternatives available now that in the short run can provide a very nice (if not perfect) picture for your HT while projector technology continues to develop, and (3) I think we all suspect that the prices of the made-for-HT projectors will decline substantially in the next year or so.