The 830 is amazing for embroidery. Besides the jumbo hoop (10" x 16"), the ability to drag and drop on screen, absolute positioning, as well as being able to take any decorative stitch from the sewing side, alter it however you like (turn it 180 degree, stretch it, add more stitches to it, etc) then send it to the embroidery side to be sewn out in the hoop is really, really amazing.
You can download the emulator (onscreen virtual 830) and try the machine out here:
http://www.exnovodesign.com/DOWNLOADS/setup.zip
Also, lots of Bernina webinars showing some of the 830 features here:
http://www.exnovodesign.com/830.html
As for quilting on the 830, no. I have a commercial longarm.
Originally Posted by GwynR
I do mostly quilt, but also make clothes and bags. I have always wanted an embroidery machine and would love to incorporate embroidery into my quilting. Have you used yours much for quilting? I know it's not really longarming on this machine because the throat is so small compared to a longarm. If was 18 inches instead of 12 there would be no hesitation on my part!