I think I must be the only one to think that they are worth trying out. My only concern would be that the screws might not work effectively for as long as you would have the ruler. Do you screw into the plastic or is there a metal sleeve for the ruler to screw into? If you want to try for the same effect of these rulers before purchasing, how about just using tape on the bottom of your ruler to line up with the edge of the fabric as you cut. This might give you an idea of how much you would like the actual ruler. I, too, am a gadget girl and would not hesitate to give one of the rulers a try. (I've cut way too many crooked strips in my life. Anything that would help me improve in this area is worth the money as far as I am concerned!) Let us know what you decide.