Instruct: Classify an Amazon review into positive or negative sentiment.
Query: DON'T WASTE YOUR MONEY

I have owned an Avent Manual Breast Pump, but when I was going back to work part-time after having my last child, I thought I would try the Medela. I was never sucessful breast-feeding my other children after going back to work, and thought it was because of my pump. My impression was that Medela was the "better brand". I was wrong. I spent 1/2 hour pumping with the Medela and got less than 1 ounce. The Medela is painful and uncomfortable and my milk did not let down with this product. The worst part is that I wasted my money on the Medela pump which does not work for me, and neither the store nor Medela will let me return it for a refund. I went back to the Avent pump, and breastfeeding is going wonderfully. We are now going into our 6th month, it just took a little more dedication, not a (useless) more expensive pump.