I just bought The Mat from Sweetwise and used it the first time. I weighed my fondant using the guide on the mat and rolled it to (or past) the measures as indicated for my size tier.
I thought it seemed thin, but when i cut the cake i saw how incredibly thick i had rolled it. I'm used to using thickness guides (the little rubber band things) on my rolling pin to ensure that the fondant is the thickness i intended and even. I dont think you can use this with the mat.
what do others do? i think i ended up with it particularly thick in the center....