I bought this about 2 months ago thinking it will be great for obvious reasons. Unfortunately, making smoothies with celery, carrots, ice or anything solid just doesn’t work because the cups are so narrow, everything just gets stuck even after chopping everything small to fit. There’s no suction to pull chunky ingredients downward so I end up having to transfer everything to the regular container anyway. Ugh. Plus you can’t use a plunger to push stuff down so this product just isn’t designed intelligently.