The biggest problem is it wont shut off. When you pull back the handle it stays open and you end up with product all over your sidewalk or truck. I've tried to figure out why it wont shut off but it looks like its designed this way. I absolutely hate the thing. Going to the Lesco dealer this morning to ask them what's wrong. I figured for $400 this thing should practically fertilize the lawn itself, but boy was I wrong. What brand should I try next?