I have one and thought I would use it alot more than I really do. I find when I am turning the mat ..the square or what ever I am cutting moves a bit and I end up have to reposition it ... exactly what I had hoped I was eliminating.

Ironically, I was just sorting my 2011 receipts for this "expensive hobby" I have resurrected. Bought the 12" OLFA at Michaels and with the 50% coupon I had and with tax= $24.06. Sign up for Michael's emails and just maybe you will get a 50% coupon. Have used it a lot for cutting postage stamp size pieces while watching TV and using Rhonda's Templates (she is here on the board). DH said, "That looks like it makes it easier for you to do that!" He has his tools and I have mine.

I have the 12.5 x 12.5 and keep it right by the machine - I use it to square up my HST and smaller blocks. Bought it with the 40% coupon.

I have 2 and like them both. Use mostly the smaller one for squaring up blocks. Worth the $$$$

I bought a 12 x 12 at walmart for about $25. I use it a lot for squaring blocks and for cutting odd size pieces. For most regular cutting I use the regular type mat.

I use mine to square up blocks and for paper piecing. I wished I would have bought the bigger one. Mine is about 12 inch square.

I have a square one and a round one and use them both constantly. Saves a lot of time and keeps fabric from shifting.

I have one and use it more then I thought I would. My Sis just got one at Joanns. They had all the Fiskars 40% off and she had another coupon for 20% off. She ended up paying around $17.00 for it. Worth the price for doing small cuts.

I have the smaller one and LOVE it for squaring up blocks!

I have the 12-13" square one, seldom use as I haven't sufficint room to turn it, thus making it useless.

I also have the round one from Come Quilt with Me which I loved; wore it out and it's practically doubled in price so didn't replace.
Found a square 6 or 7" Fiskars at Joann's; love it and with the coupon it's under $8.