I am so happy that we purchased the 48 ounce container for our Vitamix.  When we purchased our Vitamix 5200, it came with a 64 ounce container and a 48 ounce dry container. We don’t always blend enough to use the 64 ounce cup, so the 48 ounce is the perfect size. We use it almost every night to blend up our protein shakes for dessert.   Like all of the other Vitamix blender cups, cleanup is always a breeze. About halfway filled with water, a couple of drops of dishwashing liquid, and about 30 seconds on high and the blender cleans itself!