Not that great to me!
I'm surprised that I'm the only one who doesn't think these are great. In my opinion, they either dull quickly or aren't that sharp. It seems like I've had to run the blade over my photo or cardstock more than once to get a thorough cut. They also have fallen out of the track more than once. I've had 2 different styles of Fiskars trimmers, both containing this type of blades. I plan on buying another brand of trimmer next time.