Summary: I use the ColorQube 8900 for my office, and it is by far the worst printer I've ever worked with. The Ink is wax based, so anytime you have to laminate a piece of paper, the ink melts and smears on the pages. If you are doing a large printing it takes way longer than any other printer.
Summary: I had the 6605 and needed something more cost effective for colored printing and xerox representative adviced the 8900 and I found out the hard way that he did not know what he was talking me into.
Summary: I like the 8900 better than the 8860 but mostly because i have a fax and scanner now. Printing is very slow and seems like have to power off and on alot because of not being able to print. Also very hard to clear jams.