A few weeks later, Canon seemed to have updated the software drivers: when we added the second computer, the setup was easy with no need to call Tech Support

It did required a long conversation with Canon Tech Support to get the scanner to work on our first computer.

Tech support determined that the cartridge was defective and overnighted a new one

Had to call tech support to get the scan-to-email set up (way more complicated than our HP); we never did get the email to the printer to work (the tech dismissed me when I asked by saying I wouldn't like it-what?).Loved the speed, loved the quality of the printouts, loved that I could put a stack of double-sided documents in the ADF and it would automatically scan both sides, loved the larger capacity paper tray

Tech support was easy to contact and hold time minimal

Tech support decided my black cartridge was also defective

After emailing tech support for a few days, the solution was that the magenta cartridge is bad and needs to be replaced

In the end I decided that (a) Only about 16% of the reviews were negative, (b) there was not a single compelling complaint theme running through the negative reviews, (c) it was worth risking $350 in the hopes of avoiding a $1000 and up expenditure for a more commercial printer.