I use mine all the time. If I need a 1/4 cut I use my trusty 6 1/2x24 ruler. They didn't have th 1/4 shape cut when I bought mine. Don't really want one, seems a little flimsy with so many close slots and I'm fine with my 1/2 inch one. Sometimes I think about the 1/4 one.
Maybe someone has had the 1/4 one long enough to tell if it lasts?