They are a pretty good idea and much more affordable than most. Both types produce same edges, but there are differences in the way you USE the Bissonnette over the Western & Common edgers. The Bissonnette is a safety edger, it has a rounded end whereas the one like you use has two pointed ends, if the edger slips and bumps your finger, the Bissonnette will not "poke" your finger like a Western will. Also, the Bissonnette can be PUSHED or PULLED to make an edge. And with the Bissonnette, it seems to get into and out of corners easier than the Western. Husband (Dave) uses both types of edgers, but he usually prefers the Bissonnette because they seem "handier"----but this is his personal preference. Hope I have answered your questions.