I replaced my container after a few years and a very rusty bottom with pieces of ball bearing coming out. Not at all happy about that by the way. I decided to go with the low profile container so it would fit under my cabinets easily but it does not work as well as the taller version. I am guessing since the blade area is wider it takes longer for everything to get mashed but some pieces just never seem to make it into the blades. I have been disappointed with my smoothies because the frozen bananas and pieces of blueberry are not pureed as they were with the old container.