Firbon 12" Guillotine Paper Cutter, Heavy Duty 12-Sheet Capacity Trimmer for Cardstock, Photos, Scrapbooking, Office, Classroom, Studio (Gray)

The markings on the board are actually a fraction off, they're crooked; meaning that when I line paper up with the grid, the edge of my paper gets cut at a millimeter angle instead of straight. I need to instead line paper up with only the metal edge of the blade bed, on BOTH sides. It is a little tedious, but after you've done this a handful of times, you get skilled at it. Getting lighting just right and standing over the table and having a good eye are crucial to getting a straight cut. That would be true for any guillotine cutting board, but this one having crooked guide lines makes it slightly more challenging. I'm sure that I merely got unlucky though. Just take your time lining up the blades with any cutter like this one. The blade itself is great and the cuts are beautiful. I still prefer this to just about any other manual cutting experience, as once you're in place, you don't have to aim during the whole cut or trust your skill like with an exacto knife. It is just BOOM done. The shield holds your paper in place and protects your hand. You don't need software and an expensive machine to just get a straight line on a simple project. It is Clean. The whole thing is super lightweight, and fairly small. The locking mechanism is simply putting a block into a hole, it isn't 100% locked. If you want to transport it a great distance, put it into a box, or wrap a big rubber band around it or something. If you put it back in the box it came with, the handle will stick out since it's not removable once it is put on. That's a good feature for safety but yea. All in all I am so happy I have this thing; making my life so much easier. And for that price was totally worth.