Pros: Prints duplex nice and fast. Quiet. Doesn't appear to be any warm-up time for the first print or copy. Copying is fast and the feeder works as expected. Scanning is as fast as copying and the files just show up on your computer. Size-wise, for an all-in-one, it doesn't take up a lot of room on the desk/table.
Update almost a year after purchase: On our third or fourth generic cartridge, still works great. My wife's a teacher and she uses it very often to make two-sided, multi-page handouts. Prints duplex (both sides), copies and scans very fast. Now that I'm thinking about it, we've never had a paper jam, even when she used really flimsy paper for a while.

Cons: I went for a custom setup which ended up a little convoluted. Once it had an IP address the computer setup went smoothly. Update: what I meant to say here is that I should have just done the express setup. I ended up setting a static IP address via the control panel on the printer.

Other Thoughts: I rarely write reviews, but am impressed by this printer. BTW, our network is wifi. We're Windows users. I recommended this to a non-techie Mac user and he says it's the best printer he's ever had.
Pedro G, how to switch from 600dpi to 1200dpi: Don't know about a Mac, but on a Windows machine, the resolution is in Printing Preferences. then the Quality tab, then the Advanced Settings button.

Pros: Fast, easy on the toner, quiet and easy to connect.

Cons: No problems, never had a jam in over 6,000 prints, copies, scans or faxes.

Other Thoughts: I would recommend this printer over any other brand. As far as support is concerned, whenever I have questions about the printer, I state it in an e-mail to Canon and always receive responses within a day and their answers have always been precise!

Pros: nice small printer I wish I could get it installed on my network

Cons: It could make a nice large paper weight for someone that like a large black one

Other Thoughts: I am so disappointed with canon on not helping me with my problem. I have several canon probducts in my system but this on has be the most troublesome.

Pros: For the price, and especially for the sale price, this is an outstanding value. It rivals the much more expensive HP multi function machine I've relied on for years. Fast printer, *very* fast scanner for this class of machines if you turn documents into PDFs or whatever. Sheet feeder is not only convenient but especially capable of feeding sheets with no jams. Have not tried to the fax, wi fi connection, but so far, I'm quite impressed at the value for this price. Oh - also - does duplex scanning flawlessly - often a weak spot of multifunctions machines, if they have it at all.

Cons: A lot of people have complained about the lack of documentation and the difficulty of setting this up, esp. with wifi. I'm moderately+ tech smart, so so far it hasn't been a problem for me. But I can easily seen how for the 'average joe' this could turn into hair pulling frustration. Also, it's USB 2.0, which is why it is probably getting sold off at discount. One egg off for not being user-friendly.

Other Thoughts: Overall I think it's a great machine - but if you're not tech savvy, you might need a friend who is to set it up.

Pros: -Fast
-Easy to Set Up
-Efficient
-Good quality scans
-Compatible with many computers

Cons: -When you are using the fax in conjunction with your main line it will cause interference on your line

Other Thoughts: n/a

Pros: Quick
easy interface for scanning

Cons: none yet

Other Thoughts: Got this printer on sale as I had an earlier Canon Printer with an external Print Server. I decided to upgrade to a printer MFP with an internal wired and wireless print server and I couldn't be happier. Easy to use and great quality prints. For a home office this is the best!!!

Pros: Fast, quiet, conveniently easy, Airplay, wireless print

Cons: Not that I seen, really amazing product

Pros: Auto Duplex, Fax/Scan/Copy/Print Function and Reasonable price.
Small Footprint.

Cons: less than 6 months, it died. Living in Portland, Oregon, which is not a small city. The closest repair center is 2 hours away, near Seattle, Oregon. Very inconvenient!

Pros: Wireless, compact, duplex printing

Cons: It's only black and white. Also, for some reason, the printer picks up a different IP every time it resets. This can be avoided by setting the IP rather than relying on DHCP.

Other Thoughts: This is a good light duty printer for my household. i wish I had seen the color MF8200C first though since it is at a similar price point.

Pros: Prints

Cons: Sometimes printed skewed. Now no printing at all. Paper jam error, but no paper jam. Had it 2-1/2 months