I have been reading off and on messages posted. I would like a little more info, on the martelli ergo rotary cutter. What do yous like about the cutter. Does anyone see a difference from using the olfa cutter, and then getting the ergo cutter.I did check out some of the videos on the cutter, and I did order, the cutter. Can you use different cutting blades, or do you have to use the blades, for the ergo cutter. Any info, I would appreciate.. Don-isewman