I ordered my vitamix 7500. When I got it, the pulse feature wasn't working. I emailed vitamix once to mention that the pulse wasn't working even though I followed the instructions on how to use the pulse feature. The next day they sent me a shipping label free of charge and said my new vitamix was on it's way! Such fast and efficient service! I have now received my vitamix (pulse feature works!) and I am IN LOVE! this blender is a beast to say the least! I love love love my vitamix!