It works out Excellent! I purchased the cartridges from Kopykake and use them in the Canon PIXMA MX860. I chose the Canon because of the six ink cartridges. When I use more of one color than the other, I can replace that one instead of the entire set (like with other printers).
@thewhitecakebox I found using Wilton sugar sheets tend to prevent the track marks. Some of the frosting sheets on the market are still just a bit too thick and make the printers drag (i.e. track marks).
I remove the cartridges after each use and store them in a Ziploc bag. I also occasionally use vodka with a paper towel or lint free cloth to clean the print heads and the area where the cartridges rest between printing.