By cons, it has a huge downside that can offend with a lot of you: the aligning guide is not good at all and it is very difficult to fix the leaves once the settings.
It would have been better to make it more difficult to stop moving because there, just placing the leaves against the stop makes getting it and thus disrupt the stop. In the end, I missed a lot of holes ...
Fortunately, with time, I finally properly adjust the stop, but I feel it is feverish, I check from time to time on scrap paper.
Otherwise, the product has no defect. It is even very good.