Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Uhgg...

I have one of these and it STINKS. Its bobbin thread is never the right tension and I can only sew with cotton fabrics. The needle will unthread its self easily and it doesn't do long seams well. I have to pray that it will do what I want when I use it. I plan on getting a new sewing machine as soon as possible.