Instruct: Classify Amazon reviews into positive or negative sentiment
Query: junk

this piece of equipment is cheaply made and difficult to assemble. After three uses the extension arm fell off the unit. I had to call the manufacturer for another arm since the first one was broken.it took a week to get the part. and now I'm not sure if I want to go to the trouble to put it back together.I am considering returning it, but i have to find a shipping box it will fit in.