I am by no means an expert on projectors, but I am very picky when it comes to details. My main concern in purchasing a single chip DLP was the rainbow effect. I am very susceptible to this and was able to see it on all of the projectors that I previewed with slower color wheels.
For those of you who are not familiar with the rainbow effect, it is produced due to the use of a 'color wheel' that allows the projector to project the three different colors (RGB red, green, blue) onto the screen to create the picture using only a single chip. The wheel spins very fast and the light shines through each color on the wheel as needed to create a projected image that is accurate in color. The problem with this, is that when you are looking at the projected image, if you move your eyes (say in an action scene) the colors appear to break up and appear like a rainbow, this effect gets worse the slower the color wheel is.
The 8602 has a 'fast color refresh' mode which boosts the colorwheel speed to 6X (lower esetting is 4X, most projectors have a color wheel speed of 4X or less). To my joy, when I set it to the higher color wheel setting, the rainbow effect was diminished to the level that it was barely noticeable. I find DLP projectors to be the closest to the experience you get at a cinema. So I was very happy to finally find a single chip unit that was affordable and that I could enjoy without experiencing the rainbow effect.
The image is incredible, razor sharp and the colors are very accurate. It is also one of the brightest 1080p projectors you will find. This can be maximized by using the horizontal lens shift (the brightness is at it's highest when the lens shift is utilized to move the image up (down if you ceiling mount it) for me, the difference in brightness was not subtle.
I have been very impressed with this projector. The only downside is that Infocus have stopped producing it, so snap one up while you can.