Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Don't Waste Your Money !

I bought the Abdoer Twist and within 40 days the main tension spring broke.I had a very hard time convincing service representatives (many more than a few calls) that they had a defective product and I expected a replacement spring. They continually said that this occurred outside the 30 day warranty period. I finally convinced them to send a new Spring at no charge even though they wanted to charge me more money.Well, guess what !It broke again in the very same place.The machine doesn't provide a very effective workout to begin with, but I'm not even going to try and get it replaced again because I'm sure I'll just get the run-around again.Headed for the dump.Do yourself a favor.Don't purchase this piece of #*@^ !