I bought this second jar replacement. The first replacement I had purchased was a for gasket issue. It had just worn out, which they do. At that time I could see little gray bits when grinding sugar to powdered sugar and called Blendtec. So it was time to replace. This current replacement jar was due to making soup with super 'hot off the stove' vegetables and broth. Liquid started to leak and thankfully didn't damage the base. Although I did melt the gasket. Sooo... this time I know to be more careful and save my receipt for the longer 3 year warranty. Yes, it is worth it as I love the features of the base I already have.