Pros : easy to use, excellent print quality, easy to transfer if you slide the decal off the backer directly onto the glass.
Cons : poor directions, especially concerning the printer options and firing schedule (none actually provided)
Other Thoughts : So after testing this with copy toner from Kinkos/FedEx and Office Max (don't bother, they don't contain the iron oxide needed), the trying an inkjet MICR which would load into my printer so never printed, I bought a new laser printer.
Printer: Canon Laser Printer (ImageCLASS LBP6030w) and the compatible MICR cartridge (for check printing because it contains a high percentage of iron oxide). I did find a website that mentioned that any Canon or HP laser printer would work as long as it does not have the capacity to print in color (they use HP Laserjet P2035). I have not tested the toner cartridge that came with my Canon yet.
Firing Schedule: I have a Paragon CS19 and JenKen 15/6 and have used the below schedule in both.
R1 at 100F, hold at 200F for 30 minutes. (vented)
R2 at 200F,hold at 800F for 15 minutes. (vented)
R3 at 300F, hold at 1280-1300F for 15 minutes
R4 FULL, hold 960F 1 hour.
R5 at 100F to 850F.
R6 at 300F to 600F.