Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Don't Buy

I purchased a Singer Inspiration 4206 in June 2009. This Singer product has been nothing but a disappointment. I am an experienced seamstress and was very disappointed with the performance from this machine. Very light weight, this is my first plastic sewing machine, it literally hops around as you sew. I have had to replace the bobbin case 3 times and it still does not sew correctly. All previous machines I've owned were metal. I am going looking for a metal machine. Don't waste your money on this plastic defective Singer.