I’ve been using a C6180 All-in-One at home for about 2 years now and just haven’t had a single issue in any mode. (I don’t have Vista on anything at home and HP upgrades are turned off so maybe that’s why?)
It prints well on any type of paper, cartridge life seems good, fax and scan functions work very well.
In the office we have mainly HP scanners and printers (can’t recall model numbers) most only 2-3 years old, no Vista (except laptops), HP upgrades are turned off and again no issues.
Maybe I’ve just been lucky!
Having said this, will now think twice before any other HP purchases in view of above comments.