Just picked up an Omega MediaCut rotary trimmer, 24 in. and it is nice. Was using a 12 in. Dahle, OK, but cheap and nothing like the Omgea. BTW, the Omega was much less than the Rotatrim, but I must say the Rotatrim is very nice. Have used a metal straight edge and X acto as well, fresh blade is the key with this and a steady hand, I used a clamp to hold the straight edge.