Very nice! I had one and it didn't cut, even brand new. Finally the other day I gave up and trashed the blade and replaced it with a straight one, since I needed another rotary cutter for my travelling kit. Perhaps I should try again. I use my pinking shears a lot since the rotary cutter didn't work. I would probably use it mostly for making cards with fabric that I want to apply raw-edge to a card front. I think it would be very handy for cutting flannel for quilts to help with the fraying aspect of flannel. Also for cutting felt for ornament backings.
Cute bookmark!