I was cutting a bunch of tags to give to someone for a RAK and the old blade was blunt so I unscrewed it and put in a new one... then I kept on cutting and about 50 shapes later the blade snapped clean off in the template! I didn't know they DID that... :( Now I've got to buy some more blades, and a new cutting mat while I'm at it - I've cut so many shapes this week that it's almost cut in two!
I'm definitely getting my money's worth out of it though... I've used it for half a dozen swaps, my baby album, I cut a hundred tags last week for prizes for a contest, and I've also used it for my cards... I love how easy it is to cut curvy shapes with it.