Instruct: Classify Amazon reviews into positive or negative sentiment
Query: mojo round rail

This is total trash. When I first put it together it wobbled constantly. The worst part about it though is the annoying screw things with the plastic handles used to adjust the height. When I was tightening it the plastic knob came off rendering the rail useless until I fixed it with bolts and such. This is pretty good if you want to put it in some concrete, but I wouldn't get this if you want to set it up in your driveway and shred it hard. It will fall apart on you.