Overall, the unit has worked well since I received it 4 months ago, Laser prints come out quickly and clear, able to print on index cards which was one of my requirements. Envelope printing also works without issue. Challenges are the scanner is finicky looking at the design it is easily identified as a design issue. The paper is fed in the scan tray by one small paper roller/feed point in the center, but nothing on either side to help the paper feed evenly. They seemed to think the guides on the edge of the tray would do this by themselves, nope, not consistently. So, any curl or dog eared edges, staple holes, folded paper, or load over 10 pages in the scanner will cause a slight drag as the page is pulled through and scans at a angle. Option is to mind the pages as they scan, Other dissapointing thing is the lack of a duplex scan to go with the duplex printer. The scanner is really, poorly designed in general, beyond that it does scan very clearly, if you get the pages to load squarely. The scanning software that comes with the unit will allow the scanned document to be corrected so it is properly in frame. Options in the same canon software allow for scanning to be saved to PDF, TIFF, PNG, JPEG/Exif, PDF (single page files)
The unit also has firmware update from the device without having to download a file, upload it to the printer and then wait for the firmware to process. It does it directly from the control panel. Nice.