I've tried 3 different trimmers before purchasing this one including Martha Stewart, Fiskars, and Stampin' Up. I make a lot of smaller things like cards and Project Life pages so the problem I kept running into was that when the extended bar is pulled out there is a slight gap where you can't see all the lines on the ruler. I'm very precise and I cut down to the exact 1/4 and 1/8th of an inch. This We R Trim & Score Board is EXCELLENT! When the extended arm is pulled out there is no gap and you can see ALL the lines. No more guessing. Also it doubles as a score board and folds up for easy storage when going out on crops.