I have a lot of curb and driveway to edge.  After years of fighting weed eaters, I definitely like this even if it has a electric cord.  No more messing with gasoline motors.  I had allowed the grass to grow long onto the driveway so the first time was time consuming.  Edged on a frequent basis, the edger gives a good quick clean cut.  The edger has good power.  I am happy with the purchase.