I have had a MM 12 x 12 mat with magnets for over a year, and use it every day. I find that it works better than any cutter for getting straight cuts, but that's an indivifual thing, I guess. My edges have not rolled, but remember to use a heat gun very far away from it! I think even if you have a hot light bulb right over it, it could roll your edges. I have only 'cool' natural light bulbs, so the one directly over it throws very little heat. I find I no longer use the magnets, just the magnetic ruler and my hands!
Obviously, an xacto knife can be more dangerous than a cutter, so you have to be careful and put the knife away from any little fingers!
|