I've gone through two blenders within the last 5 years and am finally satisfied! First blender was a Nutribullet which started leaking within the first week of use and the second was a Black and Decker which was defective from the first use because it was dropped during shipping and handling. I've made hummus, smoothies, milk shakes and protein shakes. The extra blender jars are perfect for my husband and I because we don't drink the same protein mixes.