Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: Poorly Designed Junk

This is one poorly designed piece of junk. The Chipper works great on long, straight branches. Anything else just jams the unit. Unjamming it requires dis-assembly, which is not easy. Extremely hard to start. Had to send back to distributor after 3 hours of use...wouldn't start at all....a safety switch had failed. (Did not buy from Amazon.) The vacuum does not pick up twigs,just leaves.I complained to MTD,who owns Troy-Bilt, their response was to put me on hold and forget to pick up again. Jerks.Hopefully it will pick up leaves this fall. We'll see.