This blender set is super convenient. The smaller base allows you to customize how much you want to blend. If I'm making a smoothie for just myself, I use the small one and don't have to dirty up a giant blender. If the whole family wants one, I can easily use the large blender. It blends quickly and smoothly with very high power. I've also blended up cooled butternut squash soup instead of using an immersion blender and it worked like a charm.