The only thing I don't like about cinnamon is it washes away in rain and the ants can find ways around it on the ground (via weeds, debris,...). I do use FGMO and smear it around the base of the hives, outside and under (screened bottom boards) and this does pretty good at keeping them at bay. If we get a severely heavy downpour I need to reapply, but otherwise it stays awhile. I like them both and use both.