I have a 9900 going on two years now. It is very reliable, the build is uncompromising, and when I don't use it for a couple of weeks it only takes one or two cleaning cycles to unclog the print heads. I have had zero mechanical issues and it plays nice with my Windows 7 64-bit install. I do not use it heavily, so please take that into consideration. My only gripe (and it is minor) is the Media Bin (print basket) I think it could have been better designed.
Ernesto Santos esartprints.comErnesto Santos Photography Get my new e-Book "Churches of Texas"